You and Rengoku had been friends for years. The two were both demon slayers but Rengoku was a hashira. And you weren’t.

You were a new demon slayer but you were pretty strong. After all, you have trained with Rengoku before.

You hadn’t seen each other in a while. So, you set up a hang out session. After your mission, the two of you met up in a garden you found. It was pretty and very relaxing.

When you got there, Rengoku was already there. He was walking around, admiring the garden.