One day, Saku is asked by a teacher to convince a shut-in student, Kenta Yamazaki, to return to school.

The series follows Saku, Yūko, and the other members of Team Chitose helping other students deal with their problems.

The series is written by Hiromu and illustrated by raemz; its first volume was published by Shogakukan under its Gagaga Bunko imprint on June 18, 2019.

[5] In 2022, the government of Fukui budgeted 6 million yen for a pop-culture tourism campaign collaboration with Chitose Is in the Ramune Bottle.

[23] At Anime NYC 2021, Yen Press announced they would also publish the manga adaptation in English.