Tsu-bo-mi

The main character loves Chika, whom he's known since she was a baby. He studies hard to be a teacher to work at her school, and finally he starts to work there. But on his first day of school, he molests Chika on the train, and is arrested. He tells the school he is innocent, and is told to find a culprit in a week. Will he be able to tell his love to Chika by then...?