Nishiki Hasegawa

長谷川 西希

Nishiki is a close friend of Kyouta and works with him at a karaoke place. He greatly respects Kyouta because he "owes him a lot." He instantly falls for Tsubaki's sister, Sakura, and dates her. [Spoiler] Several years later, he marries her and they have a child. [/Spoiler] (Source: Wikipedia)