[MKON-016] Tôi đã lợi dụng em gái tự cao tự đại của mình trước k cô ấy trở thành một vật phẩm đã qua sử dụng bằng cách quyến rũ và biến cô ấy thành nô lệ tình dục creampie của tôi như là anh trai của cô ấy.

swimlerockke5

Once upon a time, she was my cute little sister who would say things like, 'When I grow up, I'm going to marry you, big brother!' But lately, Kotone has been avoiding me. Well, I guess it's probably just her being tsundere. There's no way Kotone could hate me. She seems to be in a good mood on the phone with someone... Could she have a boyfriend now!? Before my beloved sister falls into the hands of some unknown guy, let me be her first partner. Let's graduate from being a virgin together.