Baka na Imouto o Rikou ni Suru no wa Ore no XX Dake na Ken ni Tsuite, bakaimo, The Case Of Making My Stupid Little Sister Smart With Only My XX, バカな妹を利口にするのは俺のxxだけな件について, The Case of Making My Stupid Little Sister Smart with Only My XX, 바보같은 동생을 똑똑하게 하는건 나의 xx뿐인 건에 대하여, Ma nunuche de belle-sœur se met à me faire des choses intelligentes, バカないもうとをりこうにするのはおれのテケテケだけなけんについて
Baka na Imouto 4

When Yuuta returns home to find his mischievous younger sister, Suzuka, waiting for him in nothing but a teasing smile, old childhood tensions ignite into raw passion. Their playful arguments dissolve into heated embraces as Suzuka tempts Yuuta into crossing forbidden lines. Amidst stolen kisses and desperate gasps, they surrender to their taboo desires, exploring each other’s bodies with a hunger that leaves nothing hidden or untouched—sibling love turned sinful.