Age: 16-17
Birthday: May 3
Height: 168.6 cm
Blood type: A
Likes: tea, candy, potato salad, movies, watching TV dramas
Dislikes: coffee, singing, tongue twisters

At the beginning of the series, Shun had long hair, as well as feminine hobbies and speech patterns, which resulted in many people mistaking him for a girl (including Chizuru).

Masaki develops a crush on him after he is kind to her, but he does not seem to return or even notice her feelings.