Sleeping BOOTY: Muboubi Imouto wo Suki Houdai!

A young man finds himself unable to resist the temptation of his younger sister, who is completely unaware of his desires. She goes about her daily life without any guard, leaving him in a constant state of inner turmoil. Their seemingly innocent interactions become a source of both pleasure and guilt for him.

As his obsession grows, he begins to secretly take advantage of her trust and vulnerability. The line between sibling affection and forbidden desire blurs, leading him down a path he cannot easily escape. The story explores the dark consequences of unchecked lust within a family setting.