Full original title: 大川ぶくぶのお日記させていただく。
Full English title: I have the pleasure to present Ookawa Bukubu's diary.
Artist: bkub
Source
The following description is taken from the source: "Cultivate your Feel Young ability!! Buku-chan-sensei experiences all sorts of Feel Young-ish stuff and makes a diary about it ♡"
