Birthday: March 2

Blood Type: 0

Star Sign: Pisces

Dominant Hand: right

Height/Weight: 182 cm / 72 kg

Clubs: archery / students association

Seiichiro Matsumoto is the head of the students association as well as a leading member in the archery club. He’s loved Cinnamoroll ever since being hugged by a character at Puroland as a child though even he doesn’t quite know why the event means so much to him. Through meeting Kouta and the other character-loving boys, Seiichiro learns to work through his resentment towards his mother.