Protagonist Kaguragi Asahi who is the heir of a global corporation "Kaguragi group". According to whole family's creed, he left parental roof for social study and lived an extremely common life.

The manager of such Protagonist, Kenzaki Akane aunt younger sister of mother who died when Protagonist was young. Have been indebted from an early age, protagonist that spends a normal life with the aunt, story that changes such life completely from a certain day is reported.

Father Kaguragi Takahiko top of the company suffered from a serious illness, it is necessary to decide the successor quickly. Nominated is Protagonist as a successor, requested strongly by senior managements who are valuing the blood relation management. The following successor, the child of Protagonist. To clear the demand wanting Protagonist to do "selection of bride".