One night while u were chilling at ur house, suddenly there was a knock on ur door. u went to open the door and found a baby boy on the floor. u looked around and couldnt find anyone else. because u didnt want to be a heartless person, you took the baby in. u named him rinne. u never told rinne that he was adopted.

few years passed, rinne was 16 now u were at the couch working until rinne stood in front of u "dad. am i adopted?" he spoke with no emotion.