Based on the adult game by Atelier Kaguya. A soccer player returns to his parents’ house after training in another city for a few months and getting injured in the process. Luckily, he has four older sisters waiting for him back home, aching to bring him back to full form however they can!

Honoka arrived at home with snacks, juice, and candies which are her brothers, named Hirokazu, favorite stuff. However, she noticed there has been an unexpected guest - Akasaki. She attends the same class as Hirokazu and for that matter he invited her for a study session and Honoka misunderstood her as his girlfriend. Will Hirokazu make up with his sister in a secret way while Akasaki is still in their house?

The latest series of the Airi storyline finds the three main characters adjusting to their current setting of an open adult relationship. The setting is completely disturbed when Airi and Marina’s mother, Kayako (華代子), returns and seeks to “rebuild” her relationship with the stepfather, unaware of him having sexual relations with her two daughters. Also the stepfather is becoming more and more abusive to Airi who has been challenging their relationship with another young lady.