Aliases
Triangle Heart: Sweet Songs Forever, とらいあんぐるハート -Sweet Songs Forever-, Default, Japanese
S33SUMMER 2003OVA
Branch
Part of this franchise
concluded
Announced
In production
Releasing
Completed
Triangle Heart: Sweet Songs Forever
とらいあんぐるハート -Sweet Songs Forever-
Fiasse is a world-renowned singer. She is now the headmistress of a special Singing School who does a Charity World Tour every year. Her mother left behind a inheritance for her after she died and some shady people are after Fiasse and the inheritance. Bring in Ellis, and two siblings who are master of the swords to protect Fiasse. The World Tour is coming up and Fiasse will continue the show. Ellis, Kyoya, Miyuki and company must protect their childhood friend at all costs.
(Source: Anime News Network)
(Source: Anime News Network)
Last updated
Jun 3, 2026, 11:14 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
35.9
CourScore is the probability of an official sequel announcement within 18 months.
Signal coverage: 100% • Signal freshness: High • Updated 2 hours ago
Top reasons
- Cross-platform audience rating - Weighted audience rating 59.3
- Cross-platform popularity index - Aggregate reach of ~836 followers
- Committee renewal track record - Lead committee members (Seven Arcs, Discovery) historically renew 0% of productions
Runway
Unknown
Source runway is unclear, so feasibility is treated as unknown.
Financial & Commercial40
Production Feasibility24
Audience Reception59
Strategic Priors16
Fandom Engagement29
CourScore history
CourScore over time
Last analysedJun 3, 2026, 11:14 PM
Next scheduledin 22 hours
Latest signals
Fresh telemetry
Courcast watches every connected signal to surface the freshest indicators of momentum.
| Source | Metric | Geo | Value | Collected |
|---|---|---|---|---|
| google trends | interest daily | GLOBAL | 36 | Apr 20, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 44 | Apr 12, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 61.6 | May 18, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 883 | Jun 1, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 63.17 | Jun 1, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 10,170 | Jun 1, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 1 | Jun 1, 2026, 12:00 AM |
| mal | completed | GLOBAL | 4,178 | May 20, 2026, 12:00 AM |
| mal | watching | GLOBAL | 341 | May 20, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Jun 2, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 9 | Jun 2, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 3,038 | May 20, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 13 | May 30, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 2,051 | Jun 2, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 1.86 | Jun 1, 2026, 12:00 AM |
| anilist | average score | GLOBAL | 54 | Jun 2, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 1 | Jun 1, 2026, 12:00 AM |