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 3

When Kazuki returns home to find his mischievous younger sister, Rina, teasing him yet again, their playful banter ignites an undeniable spark of forbidden desire. Rina’s innocent taunts gradually melt into shameless seduction, driving Kazuki past restraint—soon, they surrender to throbbing passion, their bodies entwined in feverish ecstasy. With each heated thrust and whispered moan, their taboo love deepens, proving some bonds are too intoxicating to resist, no matter how sinful.