Suki na Ko no Imouto

Yuka Amamiya finally gathered the courage to confess her feelings to her first love, the flawless Nagisa Hanabusa, only to face a painful rejection. Unable to move on from her lingering heartbreak, Yuka finds herself approached by an unexpected source of comfort: Mino, Nagisa’s carefree younger sister and one of Yuka's own friends. Seeing how deeply Yuka is suffering, Mino makes a startling proposition, promising to help her forget all about Nagisa. She offers to let Yuka experience everything she had ever wanted to do with her older sister—but directed at her instead. Desperate for closure, Yuka accepts, beginning to go on dates with Mino while the younger girl dresses up as Nagisa. Yet what starts as a hollow attempt to chase the shadow of her unrequited love quickly spirals into something far more complicated. Teased by Mino about kissing someone who is supposed to be like a little sister to her, Yuka finds herself indulging in desires she can barely control. The deeper she sinks into this arrangement, the more the lines blur. As she spends more time with Mino, the girl who was only ever meant to be a substitute, Yuka realizes she is no longer looking at Nagisa—she is gradually falling in love with Mino herself.