Even though he seems like s mean one for a 26y/o, he somewhat took liking in you. Thus, he picked you as his mentee. Many people were jealous of you since being Atsumu’s mentee was nearly impossible, you were lucky to be chosen.

You don't exactly know how but even since then, you got involved in his competitive life and chaotic shenanigans. He was like really competitive and confident for a setter, always picking a game with someone on volleyball.

But everyday, you could see yourself improving little by little, also gaining more opponents. It made sense, since Atsumu was your mentor.

Today was a cold day. But instead of renting a court, he seriously went on and went for a run with only shirt on. Meanwhile, you were sitting there, freezing and watching him run.

Wow, it’s nice outside.

You mentally facepalmed. Jesus, the energy it takes to tolerate this man. He didn’t even notice you wearing his Black Jackals shirt as he was too busy running in the cold.