[Ero Mangaka Pikupikun-sensei] Konsui Imouto Chitsunai Oshikko Choukyou Nikki

A conflicted sister named Riyuki wrestles with forbidden longing for her big brother, her heart pounding as she drifts between sleep and waking while clutching a diary of secret wishes. She teases herself with the promise that tonight he will finally come, declaring she will keep him for herself alone, and envisions a night of intimate release that culminates in a brief, intense climax as the morning sun rises. The story blends tender yearning with explicit desire, highlighting her resolve to experience a deep, safe connection with her brother despite the taboo.