NAKAIMO - My Little Sister Is Among Them!

The Mikadono Group is a multinational corporation with its headquarters in Japan and is run by Kumagoro Mikadono. He designates his son Shogo as his successor in the business. However, once Kumagoro passes away, his widow Kanoko takes over as acting chairman while Shogo enrolls in Miryuin Private Academy, his father's old school. If Shogo finds a life mate before graduation, he will inherit the business from his father after he graduates. At Miryuin Academy, there is fortunately a sizable female population to pick from. But things won't always go smoothly at the academy. Because of his name and status as the company's heir, he gains popularity right once and has attracted the attention of several female students. Even though Shogo was raised as an only child, it appears that he has a younger half-sister who was raised separately, attends the same school, and wants to become closer to him without exposing her true identity. This complicates matters further. Knowing that any women he picks to be his life partner could possibly be his sister, how will he behave?