Insomniacs After School (2023)

Animation · Comedy · Drama

Ganta Nakami is a high school student who suffers from insomnia. He meets Isaki Magari, a girl with the same condition. A relationship forms as they share a secret and catch up on their sleep in their school’s abandoned observatory.

IMDb rating: 7.9 (2,136 votes)
Seasons: 1
Streaming (US): Hulu · HiDive · Hidive Amazon Channel
Language: JA
Type: Mini-series

Browse all Rollercoaster seasons in the explorer → Open in Rising Shows app → View on IMDb

Ratings refreshed Jul 3, 2026 · 1 season indexed

Cast

Gen Sato Ganta Nakami (voice)
Konomi Tamura Isaki Magari (voice)

Seasons

Season 1 (2023)

8.14 avg 13 episodes 7.8 → 8.7

Rollercoaster

Season 1 episodes — IMDb ratings
#	Title	Rating	Votes
1	Capella	7.8	207
2	Upsilon and Lambda Scorpii	7.8	175
3	Fomalhaut	7.7	172
4	Venus	7.7	159
5	Canopus	8.8	203
6	Shooting Star	7.8	152
7	The Fireworks Star	8.6	159
8	The Congregation Star	8.1	137
9	Altair and Vega	7.6	136
10	Spica of Virgo	8.2	137
11	The First Stars of Dawn	8.9	180
12	Planet	8.1	134
13	Methuselah	8.7	151

Insomniacs After School (2023)

Cast

Seasons

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