I just want a bit part in your life

Is it generally considered strange for the head of a Buddhist temple to be best friends with the head of the local yakuza?

I thought I'd ask, given Father's Day and all.

[At first, there's no picture. All that can be seen is a blank screen. However, Issei starts to speak.]

Do you know the festival Ryuujin Matsuri? The dragon god of Fuyuki's river Miongawa rampaged many, many years ago. A traveling monk prayed for three days and three nights. At the end of that, the dragon was converted to Buddhism. The monk joined Ryudoji Temple, and the dragon god taught judo to the monks there.

Myself, I prefer karate.

[Finally a picture appears. It's the hallway of Issei's school. Issei is standing calmly over another male teenager, who is lying on the ground groaning in pain.]

And that's why you're on the floor right now. Hm, that festival is coming up, isn't it? I should be preparing...

((Before anyone gets on my case, him being skilled at karate is obscure, just-translated for me canon. Sob.))