Itsuki Kobayashi

Itsuki Kobayashi (小林 一己 Kobayashi Itsuki) is an enemy turned ally and side character in Part 10, and son of Part 4's Tamami Kobayashi.

Itsuki is a young NEET who has a number of strange hobbies, including can collecting. Living a confused and slightly abusive childhood, his father cared little about his health or education, so instead Itsuki relied on himself to go about his life. Unable to properly enter education, Itsuki read books in the library on his own. Now ostracised by many, Itsuki, going by the name Hitoshi Fukuromoto in disdain toward his father, feels especially alone in the world, occasionally working as a cashier at the local Owson. He wields the stand Feel Good Inc. capable of creating handheld explosives from sealed bottles and cans.