Age: 12
Height: 140 cm
Weight: 35 kg
Birthday: April 1
Blood type: O
B-W-H: 72-54-77
Hobbies: Playing with Hyou, helping at home

In the tie in Cinderella Girls Theater skits, Koharu is shown to be a sweet girl who owns an iguana named Hyou. She wishes to be a princess, and seems to be good at giving compliments. Koharu likes Twister, and hopes to play with the Producer someday. She is the fifth idol to join the "Little Marching Band Girls" unit, and uses a set of hand bells. During her talk battle, she tells about the boys in her class swinging sculpting knives around dangerously. She does homework with Arisu Tachibana and Mary Cochran.

(Source: Project iM@S)

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