One fight causes mysteries (Rindou x Souya)

This Au is set in the future;

Souya started working at a gas station due to Just being out of collage and didn't really have any plans or any idea what to do because of all the fighting he did when he was younger. This was his 1st day of working here. The man that he saw after his interview always came to him. He learned somewhat about the man from his brother Nahoya but there ended up being something deeper than what they eyes see and what the ears hear.

No manga spoilers (except for how Ran looks in the future and Souya)
Made up story!
I don't own the characters
Ships: Rindou x Souya (Main) Ran x Nahoya
Started 6/23/22
End: 6/28/22
Art goes to all respected artist.