Yonoi Tsukihiko no Shiawase na Jigoku

Mikan Hanahata is the daughter of a large mandarin orange farmer. One day, her grandfather suddenly tries to arrange her a blind date, and she runs away at the last minute.
She promised her future in the park. She was screaming about her boyfriend and drinking alcohol.
As the grandson of the chairman of Yorunoi Holdings and the president of Moon Food Co., he tells Mikan something surprising...!