Kamil

Acerca de

is the youngest child of Myne's family. He was born in spring when Myne still was a blue apprentice shrine maiden.
Source: ascendance-of-a-bookworm.fandom

Anime

Secundario Ascendance of a Bookworm Season 3

Manga

Secundario Ascendance of a Bookworm: I'll do Anything to Become a Librarian! Part 3 - Let's Spread Books Through the Duchy!

Secundario Ascendance of a Bookworm: I'll do Anything to Become a Librarian!