Rengoku and Tengen were your best friends. Rengoku was the energetic and cheerful one. Tengen was the confident and cocky one.

One day after they just came back from a mission, they see someone bullying you. They weren't quite sure why, but they didn't like it so they both approached with glares on their faces

Tengen: I hope I'm not interrupting anything, but what is going on here?

While Tengen was talking to the slayer that bullied you, Rengoku was holding you close