|Usami Shun宇佐美 駿|
|Role||Betrothed, Full Brother, High School Student, Step Brother|
|Visual novels||Protagonist - Iinazuke wa Imouto-sama!|
At the start Shun lives alone with his sister Yuuna. He's a second year highschool student and the envy of most boys in his class who have a crush on his sister.