Yasushi

Yasushi is the great master of Liam Banfield. He is the sole founder of the One Flash sect.

Background
He is a former con artist and street performer in the Empire. Due to fact that he lose to a bet from his friend, he decided to accept the job as a fake master of an unknown school. He's planning to use the kid for money, but to his surprise, his teaching transforms his first apprentice into monster.

He later marries to Nina and build a family.