Kuroko No Basuke

A girl named Aiako Fushimi lost her memories during school at Yosen High, before she lost her memories she was cheerful and usually smiling, but she was always bullied and she had very bad memories of the school and because of that she left.
She stopped smiling and was always emotionless, she couldn't cry, couldn't laugh all because she lost her memories. She went to a new school called Seirin High, there she met a red head idiot named Kagami and pretty soon she started getting her memories back, started smiling again and fell in love with him!