※추정 권수·복간 횟수·연재지 등을 바탕으로 한 참고 추정치입니다(실측 아님)
작품 개요
In order to endure his daily suffering, Ooba, a bullied child, comes up with the idea that he is saving his happiness for the future by being unhappy now. (Source: Shogakukan, translated)
출처: AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections