Mochizuki-san ka no Yankee

After the death of their mother, Yuka, the eldest daughter of the Mochizuki family, struggled to care for her father and younger siblings. Her attempts at cooking were unsuccessful, and after tasting an impressive bento, her father hired the person who made it as a house helper. The helper was revealed to be Kuraku, a blonde student in Yuka's class known for delinquent behavior but also for having excellent academic results. The story is based on a popular Pixiv series.