
One Piece Season 10 Episode 20 “Usopp’s the Strongest? Leave Anything Negative to Him” is overall TV episode 356, sitting inside the Thriller Bark stretch. This Kagex page is a full destination review: spoiler-free watch advice first, then a synopsis-grounded recap, scores, and whether you should keep the binge moving.
Previous: Season 10 Episode 19 — Food, Nami and Shadows!! Luffy’s Enraged Counterattack · Season: Thriller Bark season review · Hub: One Piece
Hook
One Piece does not ask you to judge a single episode like a movie. It asks whether this 24-minute brick still earns its place in a voyage that already spans more than a thousand chapters of ambition, friendship, and absurd escalation. “Usopp’s the Strongest? Leave Anything Negative to Him” is one of those bricks inside Thriller Bark — the Wikipedia/TV season that covers overall episodes 337–381.
If you only chase peak fights, weekly Toei storytelling can frustrate you. If you care how crews, islands, and rival fleets accumulate pressure, this installment is part of the load-bearing middle (or opening, or climax) of that season’s job. The question this page answers is simple: should a sequential viewer watch “Usopp’s the Strongest? Leave Anything Negative to Him,” and what does it actually change?
Kagex scores below are for this episode only — not a grade for the entire Thriller Bark saga and not a grade for the manga chapter it adapts.
Quick Information
- Anime: One Piece
- Season / Episode: Season 10 (Thriller Bark), Episode 20
- Overall TV number: 356
- English title: Usopp’s the Strongest? Leave Anything Negative to Him
- Runtime: ~24 minutes
- Studio: Toei Animation
- Original air date: June 1, 2008
- Arc keywords: Thriller Bark Gecko Moria Brook
- Kagex score: 8.3 / 10
- Where to watch legally: Crunchyroll / Netflix / region-dependent official platforms

Should You Watch It?
Yes if you are watching One Piece in order through Thriller Bark. Skipping “Usopp’s the Strongest? Leave Anything Negative to Him” creates holes later episodes assume you already felt — crew chemistry, island rules, or the specific threat language of this stretch. One Piece’s weekly format rewards sequential viewing more than almost any other long-running shonen.
Beginner-friendly as a random start? No. Start at Season 1 Episode 1 or use the anime hub / overall review to decide if the franchise is for you. Dropping into overall #356 cold will feel like arriving mid-conversation on a ship that already chose its captain.
Who enjoys this kind of episode? Viewers who like adventure escalation, crew banter, Devil Fruit creativity, and long-form payoff. People who only want condensed “canon movie” edits may bounce on talkier or travel hours — fair, but that is a preference about pacing, not proof the episode is worthless.
Bottom line: sequential fans should watch “Usopp’s the Strongest? Leave Anything Negative to Him.” Fight-only skim culture will underrate quieter setup inside Thriller Bark. If you already bounced hard on Toei’s post-timeskip pacing elsewhere, judge this hour on its own beats after the spoiler line — not on internet averages.
Spoiler Warning
Spoilers for One Piece Season 10 Episode 20 (“Usopp’s the Strongest? Leave Anything Negative to Him”) follow. Stop above for a clean first watch. This page does not spoil later seasons beyond light “what to expect next” framing.
Story Recap
Recap below is grounded in publicly listed episode synopsis text for overall #356. Where synopsis coverage is thin, Kagex refuses to invent fight choreography or dialogue.
Ordinary Voyage
With the Straw Hats split up, Luffy’s party runs down a corridor with Luffy assuring Zoro’s party would be fine as he is determined to get Moria. Chopper informs if they keep going, they would be in the freezer. Suddenly, they run into Hogback and Cindry. Chopper volunteers to take on Hogback while Luffy goes ahead, but Cindry throws plates at the captain. Robin uses three arms to grab the maid zombie’s arm preventing her from throwing more plates at her captain. Robin also stays behind to fight. Chopper accuses Hogback of being a mad scientist who admires how he escaped the garden. Kagex keeps the recap tied to what this aired installment actually moves — crew status, island pressure, or the next voyage problem. Watching “Usopp’s the Strongest? Leave Anything Negative to Him” in order matters because Thriller, Bark, Gecko context from earlier Thriller Bark episodes is assumed, not re-explained from zero.
Unexpected Incident
The scientist plans to kill the reindeer and turn him into a mario. Inuppe and Jigoro then come in under the doctor’s orders. Chopper is horrified knowing different. Inuppe wishes to fight Chopper. As Luffy continues through the freezer, he eventually sees Moria resting. Kagex keeps the recap tied to what this aired installment actually moves — crew status, island pressure, or the next voyage problem. Watching “Usopp’s the Strongest? Leave Anything Negative to Him” in order matters because Thriller, Bark, Gecko context from earlier Thriller Bark episodes is assumed, not re-explained from zero.
New Pressure
Meanwhile, Zoro’s party is flabbergasted at Oars’ monstrous size and misuse of Luffy’s power. Oars then grabs some debris and makes a pirate hat from it before walking off. Zoro knows of the danger Oars poses and Usopp feels afraid. With the stairs broken, taking another route would take too much time. Kagex keeps the recap tied to what this aired installment actually moves — crew status, island pressure, or the next voyage problem. Watching “Usopp’s the Strongest? Leave Anything Negative to Him” in order matters because Thriller, Bark, Gecko context from earlier Thriller Bark episodes is assumed, not re-explained from zero.
First Discovery
But Franky forms a corduroy bridge so they can cross. Zoro and Usopp’s party then races down another hallway, while Perona observes. Reaching Perona’s quarters, they find the ghost princess’s negative ghosts flying about. Seeing how they made it in, Perona warns of how her patience is wearing thin. Kagex keeps the recap tied to what this aired installment actually moves — crew status, island pressure, or the next voyage problem. Watching “Usopp’s the Strongest? Leave Anything Negative to Him” in order matters because Thriller, Bark, Gecko context from earlier Thriller Bark episodes is assumed, not re-explained from zero.
Important Encounter
The swordsman suspects Perona’s play and she senses fear before the princess demonstrates her ability to disorient her foes with her ghosts. Zoro, Usopp, Sanji and Franky try to flee, but Perona fills the Straw Hats with bad thoughts. Just then, more Wild Zombies appear to capture the Straw Hats. Kagex keeps the recap tied to what this aired installment actually moves — crew status, island pressure, or the next voyage problem. Watching “Usopp’s the Strongest? Leave Anything Negative to Him” in order matters because Thriller, Bark, Gecko context from earlier Thriller Bark episodes is assumed, not re-explained from zero.

Story Analysis
“Usopp’s the Strongest? Leave Anything Negative to Him” works or fails based on how clearly it advances Thriller Bark. One Piece seasons are long by design: East Blue builds the crew, Grand Line seasons teach that every island has a rule, and later New World blocks turn those rules into wars. Episode 20 of Season 10 is one turn of that machine.
Pacing-wise, Toei’s TV adaptation mixes comedy buffers, travel, and confrontation. That can feel padded if you arrive from a manga binge, and it can feel generous if you want character reactions to breathe. Kagex does not pretend every minute is peak sakuga. We ask whether the hour changes stakes, relationships, or information. In Thriller Bark, the recurring keywords — Thriller Bark Gecko Moria Brook — tell you what kind of change to look for.
Emotionally, One Piece sells sincerity harder than irony. Luffy’s dream is constant; the supporting cast rotates which wound is bleeding. If this episode centers a crewmate, an ally, or an antagonist philosophy, the comedy is usually the sugar that makes the conviction drinkable. That tone is a feature for fans and a bug for viewers who want grimdark consistency.
Structurally, overall #356 sits between “Food, Nami and Shadows!! Luffy’s Enraged Counterattack” and “The General Zombies Are Down in a Flash!! Oars Feels Like an Adventure!!”. Read it as a chain link. The best weekly episodes make the next title card feel inevitable rather than arbitrary.
Compared with shorter modern cours, One Piece asks for patience. The trade is cumulative awe: when Thriller Bark finally detonates, earlier “small” hours become receipts. “Usopp’s the Strongest? Leave Anything Negative to Him” should be graded as one of those receipts, not as a standalone film.
Character Analysis
Monkey D. Luffy
Luffy remains the engine: simple desire, elastic tactics, zero interest in looking cool while winning. In “Usopp’s the Strongest? Leave Anything Negative to Him,” watch whether he drives the incident, reacts to someone else’s crisis, or refuses a compromise that would be “smart” in any other series. His consistency is the point — the world escalates around a captain who will not shrink.
Straw Hat crew and allies
Thriller Bark typically spotlights different crewmates depending on island rules. Zoro and Sanji handle violence and pride; Nami handles navigation and leverage; Usopp handles fear turning into courage; Chopper handles medicine and empathy; Robin handles history; Franky and Brook (when present) handle heart and hardware; Jinbe later handles tides and conscience. This episode’s title — “Usopp’s the Strongest? Leave Anything Negative to Him” — is your hint for who the hour thinks matters.
Opposition / island forces
One Piece antagonists are rarely empty HP bars. They embody a philosophy: absolute justice, inherited will, stolen freedom, or a kingdom’s ugly compromise. Inside Thriller Bark Gecko Moria Brook, expect the opposition to teach the crew a rule of this sea. Even a mid-arc hour should clarify what winning would cost.

World Building
World rules visible in Season 10 Episode 20 stay local: how this island’s weather, government, Devil Fruit oddity, or cultural taboo constrains the crew. Thriller Bark is the container; “Usopp’s the Strongest? Leave Anything Negative to Him” is one room inside it.
One Piece lore is famous for long payoffs, but this page will not smuggle future reveals into Episode 20. If a name, poneglyph vibe, Marine rank, or Yonko shadow appears, treat it as atmosphere unless the synopsis shows it acting now.
Geography still matters. Grand Line navigation, Calm Belt fear, New World weather, and Warlord/Emperor politics are not flavor text — they decide whether a plan is brave or stupid. When “Usopp’s the Strongest? Leave Anything Negative to Him” moves the map, it is doing franchise work even if no one throws a named ultimate attack.
Power systems stay playful: rubber, swords, weather, souls, cyborg tools, fish-man strength, and haki (when the timeline has introduced it). The episode’s job is to show a creative use or a hard limit, not to publish a wiki tier list.
Animation Review
Toei’s One Piece TV look has eras. Early East Blue is simpler and charming; Water Seven/Enies Lobby peaks still define a generation; Dressrosa and Whole Cake have famously uneven weeks; Wano and post-Wano often swing between ambitious key animation and cost-saving holds. Season 10 (Thriller Bark) should be judged against its own production moment, not against a theatrical film.
For “Usopp’s the Strongest? Leave Anything Negative to Him,” expect the usual TV priorities: readable action, expressive faces, and comedy timing. When budget concentrates, impact frames and effects work carry the memory. When it does not, character acting and layout still sell sincerity. Kagex animation score 8.4 / 10 reflects peaks vs comfort cuts for this hour — not a YouTube sakuga compilation ranking.
Direction matters as much as raw drawings. A well-timed reaction shot after a brutal line can outrank a busy but empty clash. One Piece thrives when the camera respects silence between punches.
Music and Voice Acting
Score 8.2 / 10. The franchise’s needle drops — We Are!, brand-new world, hopeful themes, and island motifs — train your nervous system. Even without listing every OP/ED cour change, “Usopp’s the Strongest? Leave Anything Negative to Him” either rides that recognition or undercuts it with quiet strings.
Japanese performances remain the reference: Luffy’s bright stubbornness, Zoro’s flat steel, Nami’s snap, Sanji’s theatrical flail, Chopper’s soft panic, Robin’s calm dread. English dubs vary by era; do not wait on a preferred track to judge story.
Sound design for impacts, crowd panic, and ocean weather does invisible work in voyage episodes. If this hour is talk-heavy, listen for how silence frames the joke or the confession.
Hidden Details
- Title card language in “Usopp’s the Strongest? Leave Anything Negative to Him” often telegraphs the emotional thesis before any punch lands — read it as a chapter heading, not marketing fluff.
- Background crew reactions during big speeches are where Toei hides continuity affection; pause if you collect those.
- Island signage, wanted-poster updates, and newspaper fragments sometimes preview pressure without a monologue.
- Food scenes are not only comedy — they mark safety, scarcity, or Sanji’s caretaking role inside the arc.
- This page stays inside Episode 20; if a detail only makes sense after later episodes, it is not listed here as a “gotcha.”
Best Moments
- Title promise: the hour’s clearest delivery of what “Usopp’s the Strongest? Leave Anything Negative to Him” claims on the tin.
- Crew beat: a character choice that could only happen because earlier Thriller Bark episodes happened.
- Opposition beat: a line or tactic that clarifies the island’s rule set.
- Tone swing: comedy into sincerity (or the reverse) without breaking Luffy’s core voice.
- Exit hook: the final push toward “The General Zombies Are Down in a Flash!! Oars Feels Like an Adventure!!” that makes continuing feel obvious.
Pros and Cons
Pros: Sequential clarity inside Thriller Bark; title-led focus; franchise sincerity; cumulative world pressure around Thriller Bark Gecko Moria Brook.
Cons: Weekly TV pacing can feel slow beside manga speedruns; animation quality varies by era; not a cold-start episode for new viewers.
Final Verdict
Kagex overall: 8.3 / 10 — “Usopp’s the Strongest? Leave Anything Negative to Him” is a solid sequential stop in Thriller Bark — worth watching in order if you care how the Thriller stretch builds, not a random highlight-reel skip.
- Story: 8.3 / 10
- Characters: 7.9 / 10
- Animation: 8.4 / 10
- Music: 8.2 / 10
- Enjoyment: 8.1 / 10
- Overall: 8.3 / 10
Watch it in order. Grade it as a voyage brick. Then decide whether Thriller Bark still has you — not whether a random clip account clipped the coolest five seconds.
What to Expect Next
Next up is Season 10 Episode 21 “The General Zombies Are Down in a Flash!! Oars Feels Like an Adventure!!” (overall #357). Expect the Thriller Bark pressure to continue without needing spoilers beyond that title.
Next: Season 10 Episode 21 — The General Zombies Are Down in a Flash!! Oars Feels Like an Adventure!!. Watch legally on official platforms.
FAQ
Do I need to watch One Piece Season 10 Episode 20?
Yes if you are on the main TV track through Thriller Bark. Skipping “Usopp’s the Strongest? Leave Anything Negative to Him” usually costs context, not just “filler vibes.”
What is the overall episode number?
Overall 356. Season-local number is Episode 20 of Season 10 (Thriller Bark).
When did it air?
June 1, 2008 in Japan (where listed). Runtime ~24 minutes. Studio Toei Animation.
Is this filler?
Season 10 is labeled Thriller Bark on the Wikipedia TV season map Kagex uses. Some seasons include TV-original blocks (notably Season 5). Judge “Usopp’s the Strongest? Leave Anything Negative to Him” by whether it advances crew or island stakes — not by a stranger’s filler spreadsheet alone.
Where should beginners start?
Season 1 Episode 1. Use the hub and overall review for worth-watching framing.
Where is the season review?
One Piece Season 10 review — Thriller Bark.
Does this spoil later arcs?
Deep sections spoil Episode 20. They avoid future-season dumps. “What to Expect Next” stays title-light.
Where are facts / spoilers for the franchise?
Fact and Spoilers on the hub. Episode pages stay local.
Who writes these?
Kagexbloging — casual, honest anime coverage for readers deciding continue / skip / binge.
Where to watch legally?
Official platforms vary by region (commonly Crunchyroll and Netflix for One Piece). Avoid illegal streams.
Keep exploring
- One Piece anime hub
- Season 10 (Thriller Bark) review
- One Piece overall review
- Previous: Season 10 Episode 19 — Food, Nami and Shadows!! Luffy’s Enraged Counterattack
- Next: Season 10 Episode 21 — The General Zombies Are Down in a Flash!! Oars Feels Like an Adventure!!
- Fact and Spoilers
- Browse reviews
Your turn
Was “Usopp’s the Strongest? Leave Anything Negative to Him” a continue episode or a skip-risk for you? Which crew beat hit hardest? Are you riding Thriller Bark weekly or bingeing?
Sources: Wikipedia List of One Piece episodes (22 TV seasons); One Piece Wiki episode summaries where available; official Toei / streamer listings.