Hina is a normal and cheerful high school girl. She tries to be always cute and kind, but since young age she always had a very short memory. She forgets things she hears seconds before, and often comes out as dumb. She is aware of her problem and tries her best to make friends, even if its hard for her to maintain a good conversation. She often feels embarrassed when someone points out that she forgot something. She often forgets things about the person she is talking to while responding.