Kono Naka ni Hitori, Imouto ga Iru!

Shougo Mikadono must follow the conditions of his late father's will to inherit a large fortune. He is required to attend a new school and find a wife before he can claim his inheritance. The task seems manageable, as the students appear friendly and approachable. However, a complication arises when he realizes he may be too familiar with one of the girls—she could be his long-lost sister. The challenge is to identify which girl is his sister without forming an inappropriate relationship. The situation raises questions about how much of his past will resurface and under what conditions the truth might come to light.

Traduzione in corso — testo originale in inglese.