concluded
Announced
In production
Releasing
Completed
Two years after the Paramount War, the Straw Hats are about to reunite on the Sabaody Archipelago. At the same time, a girl who is head over heels for Nami is trying to hand a fan letter to her before the group leaves the island.
(Source: Crunchyroll)
Note: This work commemorates the 25th anniversary of the ONE PIECE anime through an animated adaptation of the "ONE PIECE novel Mugiwara Stories" light novel.
(Source: Crunchyroll)
Note: This work commemorates the 25th anniversary of the ONE PIECE anime through an animated adaptation of the "ONE PIECE novel Mugiwara Stories" light novel.
Last updated
Oct 28, 2026, 06:19 AM
Evidence
Announcement status
Official announcement records with supporting citations.
Confirmed
TV seasonOfficial announcement logged Jan 1, 2024, 12:00 AM.
Franchise overview
Franchise timeline
Review every Courcast-tracked season for this series and jump between entries.
Renewal pulse
Courcast score breakdown
CourScore weighs signals for an official sequel announcement within 18 months, blending attention velocity, completion strength, and catalogue health.
Confirmed
CourScore measures renewal signals out of 100. It is not a calibrated probability of an official sequel announcement within 18 months.
Signal coverage: 100% • Signal freshness: High • Updated 5 hours ago
Top reasons
- Strong renewal expectation - Strong signals suggest renewal is expected.
Runway
Feasibility warning
NoneSource runway looks healthy for a continuation.
Financial & Commercial0
Production Feasibility0
Audience Reception0
Strategic Priors0
Fandom Engagement0
CourScore history
CourScore over time
Last analysedOct 28, 2026, 06:19 AM
Next scheduled4 hours ago
Renewal FAQ
ONE PIECE FAN LETTER renewal questions
Common questions about this title's renewal prospects, answered by Courcast's daily analysis.
- Is ONE PIECE FAN LETTER getting a new season?
- Yes - ONE PIECE FAN LETTER has an officially confirmed continuation. See the Announcement Status section above for the full details and citations.
- Will ONE PIECE FAN LETTER be renewed?
- ONE PIECE FAN LETTER has already been confirmed for a new entry - it has cleared the renewal hurdle. See the Announcement Status section for the source citation.
- What is ONE PIECE FAN LETTER's renewal probability?
- ONE PIECE FAN LETTER's CourScore is 100 as of the latest update. CourScore is Courcast's proprietary metric that aggregates over a dozen renewal signals - from source-material runway to social buzz - into a single daily signal score out of 100.
Latest signals
Fresh telemetry
Courcast watches every connected signal to surface the freshest indicators of momentum.
| Source | Metric | Geo | Value | Collected |
|---|---|---|---|---|
| anilist | average score | GLOBAL | 89 | Oct 28, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 3,348 | Oct 28, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 59,855 | Oct 28, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Oct 28, 2026, 12:00 AM |
| ann | rating | GLOBAL | 7.68 | Oct 25, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 1,222 | Sep 25, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 2,175 | Sep 25, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 115,388 | Sep 25, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Sep 25, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Oct 26, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 22 | Oct 18, 2026, 12:00 AM |
| google trends | momentum log ratio | GLOBAL | 0 | Oct 18, 2026, 12:00 AM |
| jikan | rating | GLOBAL | 9.21 | May 23, 2026, 12:00 AM |
| jikan | source favorites | GLOBAL | 126,134 | May 23, 2026, 12:00 AM |
| jikan | source members | GLOBAL | 699,372 | May 23, 2026, 12:00 AM |
| jikan | source status code | GLOBAL | 2 | May 23, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 23 | Oct 28, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 1,857 | Oct 28, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 25 | Oct 28, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 85.91 | Oct 28, 2026, 12:00 AM |
| mal | completed | GLOBAL | 145,364 | Oct 28, 2026, 12:00 AM |
| mal | members | GLOBAL | 168,956 | Oct 28, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 15,664 | Oct 28, 2026, 12:00 AM |
| mal | rating | GLOBAL | 9.21 | Aug 27, 2026, 12:00 AM |
| mal | source members | GLOBAL | 705,720 | Aug 27, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 2 | Aug 27, 2026, 12:00 AM |
| mal | watching | GLOBAL | 6,526 | Oct 28, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 2 | Oct 26, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 8.89 | Oct 26, 2026, 12:00 AM |
| niconico | episode comments | JP | 2 | Oct 28, 2026, 12:00 AM |
| niconico | episode mylists | JP | 6 | Oct 28, 2026, 12:00 AM |
| niconico | episode views | JP | 3,486 | Oct 28, 2026, 12:00 AM |
| comments 7d | GLOBAL | 728 | Oct 28, 2026, 12:00 AM | |
| mentions 1d | GLOBAL | 3 | Oct 28, 2026, 12:00 AM | |
| mentions 7d | GLOBAL | 30 | Oct 28, 2026, 12:00 AM | |
| score 7d | GLOBAL | 304 | Oct 28, 2026, 12:00 AM | |
| thread count | GLOBAL | 30 | Oct 28, 2026, 12:00 AM | |
| threads 7d | GLOBAL | 30 | Oct 28, 2026, 12:00 AM | |
| shikimori | completion ratio | GLOBAL | 0.75 | Oct 28, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 12,037 | Oct 28, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 89.9 | Oct 28, 2026, 12:00 AM |
| simkl | imdb score | GLOBAL | 83 | Oct 23, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 89 | Oct 23, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 46.89 | Sep 12, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 5,532 | Sep 12, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 9 | Jun 8, 2026, 12:00 AM |
| x | followers count | GLOBAL | 2,522,056 | Sep 12, 2026, 12:00 AM |
| x | followers delta | GLOBAL | 21,295 | Sep 12, 2026, 12:00 AM |
| x official jp | engagement 7d jp | JP | 4,744 | Aug 20, 2026, 12:00 AM |
| x official jp | posts 7d | JP | 1 | Aug 20, 2026, 12:00 AM |
| x official jp | silent days | JP | 19 | Sep 12, 2026, 12:00 AM |
| youtube | channel views total | GLOBAL | 0 | Jun 29, 2026, 12:00 AM |
| youtube | subscribers total | GLOBAL | 0 | Jun 29, 2026, 12:00 AM |
| youtube | trailer likes | GLOBAL | 16,248 | Oct 28, 2026, 12:00 AM |
| youtube | trailer views | GLOBAL | 923,688 | Oct 28, 2026, 12:00 AM |
| youtube | uploads 30d | GLOBAL | 25 | Jun 29, 2026, 12:00 AM |
| youtube | uploads 7d | GLOBAL | 25 | Jun 29, 2026, 12:00 AM |
| youtube | views 30d | GLOBAL | 20,721 | Jun 29, 2026, 12:00 AM |
| youtube | views 7d | GLOBAL | 20,721 | Jun 29, 2026, 12:00 AM |