Gomu o Tsukete to Iimashita yo ne… is a hentai anime adaptation of the manga of the same name by Rouka. It is scheduled for release in December 2024. The protagonist has been dating the sissy girl Mamori for some time now, who has shown initsitivu. This time his girlfriend’s sister Nanami burst into his apartment. She thanked the protagonist for taking care of her sister, and then offered to have sex with her…