The 1 season of School Rumble was broadcast on TV Tokyo from mardi 5 octobre 2004 to jeudi 22 décembre 2005. It consists of 28 episodes, the first one is called "Pounding Heart at a New School Term! Struggle with a Love Letter! Zooming on Bicycles!" and the last one "Extra Class: Smile, Please! / Mammoth, Yum! / May I Fall in Love?".
Tsukamoto Tenma is an ordinary 2nd year high school student who has fallen in love with one of her classmates, Karasuma Ooji. However, currently she is unable to confess her feelings to him. To make things worse, she found out that Karasuma is transferring to another school in a year. On the other hand, Tenma's other classmate, Harima Kenji (who is a delinquent) is also in love with Tenma. Not being able to confess his feelings, Harima gets depressed day by day.