Kouichi Nagase

Appearance
He has short hair and the average body shape of a man in his early 20s.

Personality
Not much is known about Kouichi's personality but he deeply mourned his sister Kaoru's passing. When he sees her for the last time, he's filled with sorrow and nostalgia.

Synopsis
Kouichi is Kaoru's brother. He is older than her but it not known by how much.