MKON-102 My Beloved Girlfriend Was Brainwashed by the Leader of a Cult and Degraded to Become a Creampie Toilet for His Believers Kana Yura

I went to the house of my first girlfriend, Kana-chan. A large photo of the cult leader is displayed in the living room, and we are told that all of the family members except Kana-chan are fanatics. It's obvious, but that doesn't change my love for Kana-chan. Just as the two were getting into a good mood, Kana-chan's older brother came back. “It’s going to be big from now on.