日名 雄介

Age: Deceased (died at age 18)

Yuusuke was Haruto's childhood friend and Asuka's older brother.
He was involved in the process of completing the planning for a film he thought of when he died in an accident one year prior to the events of the game. 
Yuusuke always talked like a theorist and he was the centerpiece of Haruto's group of friends.

Translated from url=http://www.success-corp.co.jp/software/sl2000/memories_off_5/character.htmlthe official site and partly taken from MAL.