Koharu is a 14 year old girl with maroon hair, fair skin, and asparagus-green eyes. She also braids her hair and keeps it in a side ponytail with a cherry blossom-shaped clip. She is the daughter of Professor Sakuragi, and normally attends school in Vermilion City. On the outside, Koharu appears to be detached and cold when she talks to other people. She is shy, but she does have a few friends. She is sometimes sassy too.