concluded
Announced
In production
Releasing
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A trip to the beach turns out to be more than expected for two people who are mourning the losses of their beloved. Perhaps a mysterious girl known as the "Umi Warabe" can help them to heal their wounds and move on with their lives.
Yoshihiro Matsunaga is the chaperone for a group of high-school students on a summer trip to the beach. One night he saves one of the students, Nao Morisawa, as she attempts to drown herself. She had been on this same trip a year ago, with her fiancee, who was later killed in a plane crash. As these two get to know each other, we find that Yoshihiro also has a painful secret from his past. Watching over everything is a mysterious young girl who somehow is always there at decisive moments.
(Source: Anime News Network)
Yoshihiro Matsunaga is the chaperone for a group of high-school students on a summer trip to the beach. One night he saves one of the students, Nao Morisawa, as she attempts to drown herself. She had been on this same trip a year ago, with her fiancee, who was later killed in a plane crash. As these two get to know each other, we find that Yoshihiro also has a painful secret from his past. Watching over everything is a mysterious young girl who somehow is always there at decisive moments.
(Source: Anime News Network)
Last updated
Aug 30, 2026, 07:45 PM
Franchise overview
Franchise timeline
Review every Courcast-tracked season for this series and jump between entries.
Renewal pulse
Courcast score breakdown
CourScore is the probability of an official sequel announcement within 18 months, blending attention velocity, completion strength, and catalogue health.
CourScore
47.1
CourScore is the probability of an official sequel announcement within 18 months.
Signal coverage: 100% • Signal freshness: High • Updated 12 days ago
Top reasons
- Source runway - Source material runway assessed as 'ok'
- Crunchyroll Like Index - 238,428 likes / 240,546 reactions on recent episodes
- Key staff availability - Director Mayumi Watanabe has no other concurrent active productions
Runway
Ok
Source runway looks healthy for a continuation.
Financial & Commercial49
Production Feasibility55
Audience Reception58
Strategic Priors17
Fandom Engagement34
CourScore history
CourScore over time
Last analysedAug 30, 2026, 07:45 PM
Next scheduled11 days ago
Renewal FAQ
Refrain Blue renewal questions
Common questions about this title's renewal prospects, answered by Courcast's daily analysis.
- Is Refrain Blue getting a new season?
- According to Courcast's latest analysis, Refrain Blue has a 47% renewal probability. This score is updated daily and blends fandom momentum, streaming signals, source-material runway, and franchise history. Check back regularly for the latest forecast.
- Will Refrain Blue be renewed?
- Refrain Blue currently scores 47 out of 100 on Courcast. Signals driving this estimate include online discussion volume, sequel history within the franchise, and platform engagement data - all recalculated daily. Titles scoring above 70 are considered Very Likely to receive a continuation.
- What is Refrain Blue's renewal probability?
- Refrain Blue's CourScore is 47 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-updated probability 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 | 51 | Aug 27, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 5 | Aug 27, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 1,115 | Aug 27, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Aug 27, 2026, 12:00 AM |
| ann | rating | GLOBAL | 6.51 | Aug 29, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 12 | Sep 10, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 33 | Sep 10, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 460 | Sep 10, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Sep 10, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Sep 9, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 24 | Aug 30, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 1 | Sep 10, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 378 | Sep 10, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 11,441 | Sep 10, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 61.17 | Sep 10, 2026, 12:00 AM |
| mal | completed | GLOBAL | 1,484 | Sep 10, 2026, 12:00 AM |
| mal | members | GLOBAL | 3,314 | Sep 10, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 1,384 | Sep 10, 2026, 12:00 AM |
| mal | source members | GLOBAL | 311 | Aug 27, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 2 | Aug 27, 2026, 12:00 AM |
| mal | watching | GLOBAL | 184 | Sep 10, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 2 | Jun 20, 2026, 12:00 AM |
| niconico | episode comments | JP | 747 | Sep 10, 2026, 12:00 AM |
| niconico | episode mylists | JP | 1,146 | Sep 10, 2026, 12:00 AM |
| niconico | episode views | JP | 76,141 | Sep 10, 2026, 12:00 AM |
| shikimori | completion ratio | GLOBAL | 0.29 | Sep 10, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 471 | Sep 10, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 58.9 | Sep 10, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 1.24 | Sep 10, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 4 | Sep 10, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 3 | Aug 25, 2026, 12:00 AM |
| youtube | channel views total | GLOBAL | 260,870 | Jun 17, 2026, 12:00 AM |
| youtube | subscribers total | GLOBAL | 1,290 | Jun 17, 2026, 12:00 AM |
| youtube | uploads 30d | GLOBAL | 25 | Jun 17, 2026, 12:00 AM |
| youtube | uploads 7d | GLOBAL | 25 | Jun 17, 2026, 12:00 AM |
| youtube | views 30d | GLOBAL | 13,579 | Jun 17, 2026, 12:00 AM |
| youtube | views 7d | GLOBAL | 13,579 | Jun 17, 2026, 12:00 AM |