Netra Serabu – Tonight I will be carried by my brother-in-law ( Japanese)

A heterosexual couple’s interests are fully stimulated by summer excursions. Kana and Bunta, a manga artist, are happily married and living in harmony in their second season of marriage. During summer vacation, Kana’s college student brother, Kisei, returns home to help Bunta with his manga. Thus begins the peculiar relationship between Kisei, Kana, and Bunta. As for the concerns of a happy wife, without further context, it’s impossible to accurately determine. Could you provide more information?