※估算 根据卷数、再版次数、连载杂志等推算的参考值(非实测)
作品概要
A boy named Hotaru and a girl named Arista live happily together in an unnamed village. The children in the village turn into "monsters" by the age of 15 and are taken to the White Tower by the "Observers." One day, Arista turns into a monster. And Hotaru learns the truth about the hidden world. (Source: Natalie, translated)
来源: AniList
外部数据库: AniList
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