Kanojo no Imouto ga Kyonyuu Mini Skirt JK de Koakumakei

Sakurai-chan, a colleague one year older than me, was my first girlfriend since becoming a working adult... To be honest, the difficulties outweighed the enjoyment. Then, by chance, I happened to be on the same train as a busty and miniskirted high school girl with an overwhelming presence! It turned out to be her younger sister! Sakurai, who is nothing like her serious older sister in many ways, has me at her mercy... Note: A live-action AV adaptation (MIMK-148) was released on February 6th, 2024.