In my house, it's just me, my older brother, and my adorable little sister living together. My little sister is always rebelling against my brother, saying things like "You worry too much, nii-chan," and their small arguments are an everyday occurrence. Caught between the two of them, my position is a bit awkward—but I can't take my eyes off my little sister's cuteness. That feeling keeps fueling my impure fantasies about her, driving them to escalate further and further...