Your house bell rings, when you open the door no one is there, but when you look down, you are surprised to see 2 baby boys who look like 2 year olds.

"M-mama..." Rindou looks at you with teary eyes.

"S-she's not mama, Rindou..." Ran's body trembles and wants to cry.

It looks like they were abandoned by their parents. Are you going to adopt them or what?