Yamaguchi-kun Isn't So Bad, Volume 10

Satsuki and Yamaguchi-kun grew even closer thanks to his sister, Nika-chan’s incredible assist.?
On Valentine’s Day, Yamaguchi-kun reacted perfectly as a boyfriend?! Compared to when they first met, Yamaguchi-kun seems to have grown and learned to fit in with others.
During spring break, he’s extra affectionate and possessive…?