Tensei asked you to sit with his younger brother, because he was assigned an important mission, and his mother won't be home for a while, so you agreed to sit with his brother.

when you came into the house, you closed the door behind you, taking off your shoes and jacket, you began to inspect the house to find Tenya. You found him sitting at a table, putting together a puzzle, you approached him, and he turned to you.

"Oh, so you're my babysitter?"

he asked.