Book 2

Two sleepless teenagers find kinship as they escape to their school’s astronomy observatory.

Unable to sleep at night, Ganta Nakami is cranky in class and unpopular with his classmates. He discovers that the school observatory, once used by the now-defunct astronomy club, may be the perfect place for a nap—but he's not alone. Fellow insomniac Isaki Magari is willing to share the observatory with Nakami, and a friendship between the two begins as they bond over the most unlikely things.

The school forces the insomiacs’ re-formed astronomy club to operate as a proper club. The problem is, neither Nakami—its new president—nor the club’s adviser know a thing about astronomy. Yui Shiromaru, once a prize-winning astrophotographer, now the manager of a small-town video arcade, might just be the person they need.

Book 3

Insomniacs After School, Vol. 3

by Makoto Ojiro

Published 26 October 2023
Two sleepless teenagers find kinship as they escape to their school’s astronomy observatory.

Unable to sleep at night, Ganta Nakami is cranky in class and unpopular with his classmates. He discovers that the school observatory, once used by the now-defunct astronomy club, may be the perfect place for a nap—but he's not alone. Fellow insomniac Isaki Magari is willing to share the observatory with Nakami, and a friendship between the two begins as they bond over the most unlikely things.

Summer is swiftly approaching for sleepless high schoolers Nakami and Magari. Now members of their school’s revived astronomy club, they’re busy preparing for their first official club event, a meteor shower watch party! The city’s annual fireworks festival is also coming up, and Nakami has promised to go with Magari. Every sleepless night brings the two closer, and their first high school summer promises to strengthen their bond even more…

Book 4

Insomniacs After School, Vol. 4

by Makoto Ojiro

Published 1 February 2024
Two sleepless teenagers find kinship as they escape to their school’s astronomy observatory.

Unable to sleep at night, Ganta Nakami is cranky in class and unpopular with his classmates. He discovers that the school observatory, once used by the now-defunct astronomy club, may be the perfect place for a nap—but he's not alone. Fellow insomniac Isaki Magari is willing to share the observatory with Nakami, and a friendship between the two begins as they bond over the most unlikely things.

After discovering the source of Magari’s insomnia, Nakami and Magari implement a new nighttime routine, hoping to improve their sleep. With the Perseid meteor shower viewing party and the national photo contest still to come, it’s shaping up to be an eventful summer for this pair of insomniacs!

Book 5

Two sleepless teenagers find kinship as they escape to their school’s astronomy observatory.

Unable to sleep at night, Ganta Nakami is cranky in class and unpopular with his classmates. He discovers that the school observatory, once used by the now-defunct astronomy club, may be the perfect place for a nap—but he's not alone. Fellow insomniac Isaki Magari is willing to share the observatory with Nakami, and a friendship between the two begins as they bond over the most unlikely things.

Following the disappointment of the canceled meteor shower viewing party, Nakami and Isaki switch their focus to the photography contest and head out on an astronomy club trip with Isaki’s sister, Haya. Isaki and Nakami come back from a night of snapping photos to find Haya leaving. Now they’re all alone together in the countryside. How will this change their relationship?

Book 6

Two sleepless teenagers find kinship as they escape to their school’s astronomy observatory.

Unable to sleep at night, Ganta Nakami is cranky in class and unpopular with his classmates. He discovers that the school observatory, once used by the now-defunct astronomy club, may be the perfect place for a nap—but he's not alone. Fellow insomniac Isaki Magari is willing to share the observatory with Nakami, and a friendship between the two begins as they bond over the most unlikely things.

Ganta and Isaki are on their astronomy club’s summer trip, but when Isaki’s older sister (and their chaperone!) ditches them, they’re left all alone. Free from their daily obligations and lost in the bliss of summer, they feel time seeming to slow down. After the trip takes a surprising turn, they reach their final destination: the starry sky of the Mawaki ruins.

Book 7

Insomniacs After School, Vol. 7

by Makoto Ojiro

Published 24 October 2024
Two sleepless teenagers find kinship as they escape to their school’s astronomy observatory.

Unable to sleep at night, Ganta Nakami is cranky in class and unpopular with his classmates. He discovers that the school observatory, once used by the now-defunct astronomy club, may be the perfect place for a nap—but he's not alone. Fellow insomniac Isaki Magari is willing to share the observatory with Nakami, and a friendship between the two begins as they bond over the most unlikely things.

After disobeying Magari’s parents, Nakami and Magari face a strict separation. Magari is banned from having any contact with Nakami outside of school. Overwhelmed with guilt, the duo reluctantly agrees to put their connection on hold. At the same time, the astronomy club faces disbandment, and the pair must make a bold move to save it. Can Nakami and Magari defy the odds to salvage both their relationship and the future of the astronomy club?

Book 8

Insomniacs After School, Vol. 8

by Makoto Ojiro

Published 13 February 2025
Two sleepless teenagers find kinship as they escape to their school’s astronomy observatory.

Unable to sleep at night, Ganta Nakami is cranky in class and unpopular with his classmates. He discovers that the school observatory, once used by the now-defunct astronomy club, may be the perfect place for a nap—but he's not alone. Fellow insomniac Isaki Magari is willing to share the observatory with Nakami, and a friendship between the two begins as they bond over the most unlikely things.

After Nakami’s valiant effort in the school festival’s race, Magari resumes her late-night radio streams. She opens up about living with a congenital heart defect since birth and shares her fears about her condition. Nakami pledges to fulfill Magari’s dream of traveling when they grow up and, in the meantime, to support her in her current goals, starting with fixing up the observatory. Both friends anxiously await the results of Magari’s blood tests at the hospital, contemplating their uncertain future together.

Book 9

Two sleepless teenagers find kinship as they escape to their school’s astronomy observatory.

Unable to sleep at night, Ganta Nakami is cranky in class and unpopular with his classmates. He discovers that the school observatory, once used by the now-defunct astronomy club, may be the perfect place for a nap—but he's not alone. Fellow insomniac Isaki Magari is willing to share the observatory with Nakami, and a friendship between the two begins as they bond over the most unlikely things.

As stargazing season arrives, Nakami and Magari dive headfirst into their club activities, preparing for the Geminids meteor shower observation and planning a trip to capture Noto’s starry skies. However, unexpected circumstances arise, and they must instead look forward to Magari’s birthday and a peaceful, snowy Christmas.