Zen Master Shun Tsukaso

He is Akira's grandfather and zen master. He teaches art of fighting and the art of zen. Shun believes that fighting is not always the answer to everyone's problems. Perhaps like his grandson, he is a rogue, but a very skilled one at that.

Although he appears to be the zen master, sometimes he falls a sleep during a long conversation. You should wake him up immediately in case he does that.