約束の七夜祭り

Starlight Promises

"A festival of miracle, where you can meet whoever you want to meet." Mihara Shoma, a first-year in high school, receives a message from his best friend Atsushi, who he hadn't heard from in ages. "Wanna come to this cool little festival I found? It's been a while, so I'd like to catch up." Unable to sit around after that, Shoma heads to a ghost village in the mountains for the Tanabata Nanayamatsuri. But he doesn't find Atsushi there. Instead, he meets a girl named Shiori, who has someone she wants to meet as well. Will Shoma be able to meet Atsushi once again? (Source: Crunchyroll)

Names

Original	約束の七夜祭り (japanese)
Romaji	Yakusoku no Nanaya Matsuri
English	Starlight Promises
Chinese	約束的七夜祭 (traditional · via wikidata)

Facts

Format	ONA (net original) · 1 ep · 63 min · 1h total
Aired	2018-08-03 (Summer 2018)
Status	FINISHED
Studio	Yokohama Animation Lab
Source	Original work
Origin	Japan (Anime)
Genres	Drama Sci-Fi
Themes	Primarily Teen Cast Wilderness Augmented Reality Male Protagonist Mythology
Streaming	Crunchyroll · YouTube

Reception

Community score	6.35 / 10
Bayesian score	7.10 / 10
Composite	46.3
On lists	2,716
Favourited	19 (0.7%)
Completion	89.0%
Drop rate	3.0%
In backlog	43.3%
Score spread σ	1.84

Score distribution

11822533845251346211726081539691028

Where it places

Cohort	Value	Tier	Rank
Studio	Yokohama Animation Lab	—	9 of 18
Broadcast season	Summer 2018	D	55 of 90
Length	Micro-series	D	138 of 210
Year	2018	D	241 of 383
Format	ONA (net original)	D	541 of 857
Genre	Sci-Fi	D	913 of 1,409
Season (all years)	Summer	D	1,058 of 1,662
Source material	Original work	D	1,067 of 1,732
Era	Late 2010s	D	1,127 of 1,863
Genre	Drama	D	1,455 of 1,917
Origin	Japan	D	4,581 of 7,157

Key staff

Director	Kazuya Murata
Character design	Majiro, Senbon Umishima
Music	Tarou Iwashiro
Original creator	Senbon Umishima

AniList id 103643 · MAL id 37970 · record updated 2026-08-24