Saki Koukawa

Overview
A girl hospitalized at Nishikata Hospital and one of Haruto's childhood friends. She has a heart condition. She used to be shy and reclusive when she was first admitted to NIshikiata Hospital. But after getting to know Aoi, she started to aim to become a cheerful person. She never wants to leave Honoka's side.

Appearance
Saki has short light brown hair, parted from the right. She has dark red eyes and has a white, light blue-trimmed cap with a yellow ornament falling on the side. She has white overalls on top of a light blue shirt, and gray shoes.