A first year student at Kaimei Academy as well as Shinzou's younger brother.
He is the younger brother of Shinzo, and his kendo ability is not up to par with his older brother. Frustrated with his ability, he deviates and becomes a punk. According to Shinzo, Shinpei starts going out late every night after he has an argument with Shinzo. Since Shinpei loses Shinzo's lucky shinai after defeating a group of punks, Shinzo gets angry with Shinpei, but he does not hit Shinpei for it.
Shinpei Takemitsu, who is created by Kenta Shinohara, has no information regarding any inspiration used to create him. He first appears in Sket Dance volume 5 and episode 24. His Japanese voice actor is Tatsuhisa Suzuki.
Note: Shinpei's story begins before the Switch Off arc as it leads into Switch's origin story.
Shinpei first appears when Shinzo tries to stop him from leaving. Shinpei drives off, and Shinzo explains to his friends, the Sket Dan, all about his brother. In Shinzo's story, Shinpei loses Shinzo's lucky shinai after having a fight with some delinquents. Much later, Shinpei is at the river where the Sket Dan spotted him. Switch is the first one to help Shinpei search for the shinai despite Shinpei refusing him. As a result, Hime and Bossun join in to help as well. The following day, Shinpei arrives to the tournament with the shinai. Shinzo explains that he has lost because he is weak, and Shinpei begs his brother for forgiveness. However, Shinzo refuses to blame Shinpei and challenges Shinpei to a duel. In the end, the two brothers gain closure.
After Switch's Switch Off story ends in episode 25, Shinpei and his brother appear at the Sket Dan clubroom to hear Momoka's voice acting role for Maji, the Yankee character. Shinpei begs Momoka to be her student, and at Hime's request, Momoka reluctantly accepts Shinpei. When Shinpei becomes too attached to Momoka, she asks Switch to help her, but Switch asks everyone if they want to hear Momoka's embarrassing information such her measurements. Momoka threatens to beat everyone.
Like his brother, he has hand to hand combat and kendo skills. He can hold his own in a fight with a group of delinquents. Hime complimented on how well Shinpei is fighting on his own.