Kaji Bannou no Ore ga Kokou (?) no Bishoujo wo Asa kara Yoru made Osewa Suru Koto ni Natta Hanashi

Kannonzaka Kyoya is a tough, somewhat antisocial high school boy who has earned the nickname "Okan" due to his exceptional mastery of every household chore imaginable. Because of this versatile domestic skill set, he is introduced to a unique part-time job that relies entirely on his ability to manage a home. His new employer turns out to be none other than Takanashi Inori, a classmate widely known throughout their high school as a beautiful but solitary girl who keeps everyone at arm's length. However, the aloof reputation surrounding Takanashi hides a very different reality. Behind closed doors, she is actually a clumsy, pitiful girl who struggles terribly with basic communication and everyday tasks. Kyoya quickly finds himself taking care of her from morning until night, navigating her constant flustered outbursts—like when she panics over him handling her laundry—with his usual blunt efficiency. What begins as a simple job soon evolves into an intimate, half-school-life romantic comedy, as the capable "Okan" dedicates his days to looking after the supposedly untouchable beauty who desperately needs his help.