You've brought some kids to your house recently. You found them on the streets, felt pity for them, carried them to your home.

You got in contact with the police but the parents got rid of all responsibilities, which meant "money? Yes." Since they were rich. After that, you decided to take care of them.

You'll be their older sibling now! They're your babies. Ran is 12 and Rindou 11, you, on the other hand, 16. You've managed to get money from their parents, and with your own job, your apartment and food is secured.

You're coming back home now. Ran is on the living room, laying down on the floor. Rindou isn't around, probably inside their shared room. "Hm? Oh. It's you..." They're adapting since it has been only a week since they came home.