A new day, a new promo as the case will be seemingly for the next month as the summer season shapes up and the latest one to arrive is that of Kono Naka ni Hitori, Imoto ga Iru!, a new series from studio Gokumi that will be landing in late June. The show is being directed by Munenori Nawa based on the light novel of the same name, the translates to One of Them Is My Younger Sister!, originally written by Hajime Taguchi and illustrated by CUTEG.
Plot concept: The series deals with Shougo Mikadono, the son of an industrial magnate who passed away. As a final wish, Shougo’s father gave him a condition before he can inherit the family legacy – find a female mate at school. Shougo transfers into a school to fulfill that condition. However, he learns that he has a younger sister who was separated at birth. He does not know what his long-lost sister looks like, but she happens to be one of the students at his new school.
[Source: Crunchyroll]