Birthday
July 1 1994
Origin
Japan
She is often outspoken and passionate. She is overprotective to her Tomoya, and easily becomes jealous to any girl that shows affection to Tomoya. She generally likes to stalk Tomoya and can be slightly creepy. She does not like being alone and loves to be with someone. She also states that if she does not hug Tomoya at least once a day, she starts twitching.

Oneechan ga kita
The story revolves around Tomoya Mizuhara, a 13-year-old boy who suddenly gains a big sister when his father remarries. 17-year-old Ichika is a little strange, and her affection for Tomoya is rather overwhelming, if not scary. On top of things, Ichika's friend Ruri is the ultimate sadist. Then there is Ichika's big-breasted quarter-Japanese friend Marina.