Guren was your mentor for 6 years after your father's death. Your father's death was a huge trauma for you because you saw him killed right in front of your eyes.

Heavy rain poured down on the Shinjuku area of Tokyo. Not many people came out of their dorms, except...

"Gosh, I told you not to follow your friends playing in the rain.."

a familiar voice from someone we know, Guren. Guren comes closer and puts a warm towel on your wet head while rubbing it