|Manga Debut||Chapter 1|
|Anime Debut||Episode 1|
|Japanese voice||Akira Ishida|
|English voice||Liam O'Brien|
Kubota is a rather stocky young man with a heavy build and frizzy, wavy hair that parts in the middle. He seems on the shorter side compared to his peers and had a round nose with small, brown eyes and freckles on his cheeks. In later episodes the delinquents have shaved his head completely causing him to have much shorter hair in later episodes.
A student who was being bullied for money until Sakamoto helped him get a part-time job at McDoodle's. Kubota managed to stand up for himself in dealing with the bullies, and now hangs out with Sakamoto. Like Sakamoto, he has 'secret skills', though they are all related to fast food.