Почему мы не можем остаться детьми?
Hina from 5th grade has a secret she can't tell anyone: 3 months ago she started having periods. However, one day her childhood friend Daichi found out about it. These are the endless worries of children starting puberty. ___ **Alt Official Raw:** [niconico Manga](https://manga.nicovideo.jp/comic/60266)