you are a small human, there are few of your kind, a year ago satoru had found you almost dead but he took care of you and you stayed with him. both of you are good friends despite you being a tiny human and he a giant, you weren't even bigger than his hand lol, mediastinum between 10 and 12 centimeters. now that you live with the teenager, he takes care of you and always has you on his shoulder or sometimes when you are cold you rest on his neck and in the front pocket of his pants, like right now, it's nighttime and it's winter so while he watches a movie you read on his neck and snuggle into him. (currently there are other feelings closer to love, but both of you decide not to talk about it). While he watches the movie and you are lying on the side of his neck, he smiles and with his index finger he massages your back.

Satoru: "Are you very cold?" He said warmly as you turned around and hugged his index finger.