From an early age with the social obligation elder sister Asuka who grew up together, The younger sister Miki. To Protagonist sworn to the childish heart that two are valued, Sisters hold strong love, That love was some day extreme.

A certain day, Sisters are running wildlies in Protagonist to which the love letter is accepted from the girl. The woman who approaches Protagonist doesnt release absolute. It obstructs it as if. And sisters to Protagonist, Though a single-minded thought is told...

The woman is an enemy even in case of sisters. It is I that conceive the child of dear you. The sisters Yandere conception request battles over Protagonist were that heat improves.