 Jin Kobayashi started writing the series "School Rumble" because he found the idea of a manga involving a delinquent falling in love interesting.Kobayashi's favorite character, Kenji Harima, is based largely on an amalgam of various friends, although he estimates "about 30%" of Harima is a reflection of himself.However, despite putting most of his personal feelings into the female characters, he stated that Ryuuhei Suga, a minor supporting character, is the most autobiographical.