Masakatsu Yuki

is a 2nd year student at Sakaimachi Academy and a junior to Takuya Arima and Mio Shimazu.

Etymology

 * The name Masakatsu means "right, proper" (正) (masa) and "victory" (勝) (katsu).
 * Masakatsu's surname Yuki means "tie, bind" (結) (yu) and "castle" (城) (ki).