The plot introduces the idea that Luna has numerous secrets (eventually revealed to be a list of 10) that Nao must learn before she reveals the true nature of her past and current activities.
Kuse Tsuyo Kanojo wa Toko ni Izanau Chapter 5.1, found on raw manga sites, continues the story of Naoto, who suspects his older relative Luna is teasing him with provocative, misdirected sounds. The series shifts toward a harem dynamic as the raw community debates the true nature of Luna's behavior, including a notable smoking habit. For community discussions, visit Reddit. The plot introduces the idea that Luna has
Our main character, who often acts much younger than his college age according to community reviewers , is still navigating the chaotic living situation with Luna. found on raw manga sites