Aliases
Niji-iro Days, Beztroskie dni, รักสุดใจคนวัยซ่า, Nijiiro Days, Rainbow Days, 虹色デイズ
S1WINTER 2016TV_SHORT
Part of this franchise
concluded
Announced
In production
Releasing
Completed
Nijiiro Days follows the colorful lives and romantic relationships of four high school boys—Natsuki Hashiba, a dreamer with delusions of love; Tomoya Matsunaga, a narcissistic playboy who has multiple girlfriends; Keiichi Katakura, a kinky sadist who always carries a whip; and Tsuyoshi Naoe, an otaku who has a cosplaying girlfriend.
When his girlfriend unceremoniously dumps him on Christmas Eve, Natsuki breaks down in tears in the middle of the street and is offered tissues by a girl in a Santa Claus suit. He instantly falls in love with this girl, Anna Kobayakawa, who fortunately attends the same school as him. Natsuki's pursuit of Anna should have been simple and uneventful; however, much to his dismay, his nosy friends constantly meddle in his relationship, as they strive to succeed in their own endeavors of love.
[Written by MAL Rewrite]
When his girlfriend unceremoniously dumps him on Christmas Eve, Natsuki breaks down in tears in the middle of the street and is offered tissues by a girl in a Santa Claus suit. He instantly falls in love with this girl, Anna Kobayakawa, who fortunately attends the same school as him. Natsuki's pursuit of Anna should have been simple and uneventful; however, much to his dismay, his nosy friends constantly meddle in his relationship, as they strive to succeed in their own endeavors of love.
[Written by MAL Rewrite]
Last updated
Oct 28, 2026, 06:16 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.
CourScore
23.3
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 7 hours ago
Top reasons
- Cross-platform audience rating - Weighted audience rating 70.2
- Cross-platform popularity index - Aggregate reach of ~59,496 followers
- Source runway - Estimated material for 0.67 further cours
Runway
Low
Limited source material remains; the amount needed depends on the continuation's format and adaptation pace.
Financial & Commercial50
Production Feasibility45
Audience Reception66
Strategic Priors38
Fandom Engagement38
CourScore history
CourScore over time
Last analysedOct 28, 2026, 06:16 AM
Next scheduledin 17 hours
Renewal FAQ
Rainbow Days renewal questions
Common questions about this title's renewal prospects, answered by Courcast's daily analysis.
- Is Rainbow Days getting a new season?
- According to Courcast's latest analysis, Rainbow Days has a 23/100 renewal signal score. 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 Rainbow Days be renewed?
- Rainbow Days currently scores 23 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. Scores from 70 indicate strong renewal signals; scores from 85 are labelled very likely.
- What is Rainbow Days's renewal probability?
- Rainbow Days's CourScore is 23 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 | 70 | Oct 23, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 532 | Oct 23, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 53,031 | Oct 23, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 1 | Oct 23, 2026, 12:00 AM |
| ann | rating | GLOBAL | 7.16 | Oct 25, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 12 | Sep 25, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 0 | Sep 25, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 31 | Sep 25, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Sep 25, 2026, 12:00 AM |
| filmarks | mark count | JP | 1,364 | Oct 23, 2026, 12:00 AM |
| filmarks | score mean | JP | 70 | Oct 23, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Oct 22, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 100 | Oct 11, 2026, 12:00 AM |
| google trends | momentum log ratio | GLOBAL | 0 | Oct 11, 2026, 12:00 AM |
| justwatch | jp platform count | JP | 2 | Oct 23, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 5 | Oct 23, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 2,598 | Oct 23, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 7,414 | Oct 23, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 67.52 | Oct 23, 2026, 12:00 AM |
| mal | chapters total | GLOBAL | 80 | Oct 26, 2026, 12:00 AM |
| mal | completed | GLOBAL | 137,402 | Oct 9, 2026, 12:00 AM |
| mal | members | GLOBAL | 248,450 | Oct 9, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 78,225 | Oct 9, 2026, 12:00 AM |
| mal | rating | GLOBAL | 7.96 | Oct 26, 2026, 12:00 AM |
| mal | source members | GLOBAL | 43,839 | Oct 26, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 3 | Oct 26, 2026, 12:00 AM |
| mal | volumes total | GLOBAL | 16 | Oct 26, 2026, 12:00 AM |
| mal | watching | GLOBAL | 15,984 | Oct 9, 2026, 12:00 AM |
| mangacodex | bd sales avg | JP | 294 | Oct 26, 2026, 12:00 AM |
| mangacodex | manga circulation | JP | 3,680,000 | Oct 26, 2026, 12:00 AM |
| mangacodex | manga latest volume sales | JP | 77,600 | Oct 26, 2026, 12:00 AM |
| mangacodex | manga volume trend pct | JP | -32.99 | Oct 26, 2026, 12:00 AM |
| mangadex | chapters total | GLOBAL | 57.5 | Oct 26, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 3 | Oct 26, 2026, 12:00 AM |
| mangadex | volumes total | GLOBAL | 16 | Oct 26, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 6.46 | Oct 26, 2026, 12:00 AM |
| mfc | entry likes | GLOBAL | 10 | Oct 23, 2026, 12:00 AM |
| mfc | figures total | GLOBAL | 0 | Oct 23, 2026, 12:00 AM |
| mfc | goods total | GLOBAL | 148 | Oct 23, 2026, 12:00 AM |
| mfc | media total | GLOBAL | 34 | Oct 23, 2026, 12:00 AM |
| mfc | merch total | GLOBAL | 182 | Oct 23, 2026, 12:00 AM |
| niconico | episode comments | JP | 69,202 | Oct 23, 2026, 12:00 AM |
| niconico | episode mylists | JP | 5,339 | Oct 23, 2026, 12:00 AM |
| niconico | episode views | JP | 1,016,526 | Oct 23, 2026, 12:00 AM |
| comments 7d | GLOBAL | 21 | Oct 23, 2026, 12:00 AM | |
| mentions 1d | GLOBAL | 1 | Oct 23, 2026, 12:00 AM | |
| mentions 7d | GLOBAL | 1 | Oct 23, 2026, 12:00 AM | |
| score 7d | GLOBAL | 71 | Oct 23, 2026, 12:00 AM | |
| thread count | GLOBAL | 1 | Oct 23, 2026, 12:00 AM | |
| threads 7d | GLOBAL | 1 | Oct 23, 2026, 12:00 AM | |
| shikimori | completion ratio | GLOBAL | 0.57 | Oct 23, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 27,080 | Oct 23, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 72.6 | Oct 23, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 71 | Oct 9, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 13.64 | Oct 23, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 23 | Oct 23, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 16 | Oct 26, 2026, 12:00 AM |
| x official jp | silent days | JP | 3,317 | Jul 20, 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 | 3,864 | Oct 23, 2026, 12:00 AM |
| youtube | trailer views | GLOBAL | 670,555 | Oct 23, 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 |