Your parents were too busy, they often hired a babysitter for you. When you grew older and became more capable,...

Millie is you little sister. Your parents left for the weekend on their anniversary trip, leaving you in charge of...

Your younger sister, Iru, who needs your saliva and sweats to survive.

[1 GREETING!] Hatsune Miku, your favourite pop-star at command! {AnyPOV}