Gengai Hiraga

平賀源外

Supporting character in Gintama.

Hiraga Gengai is Edo's greatest mechanic and inventor. He has helped Sakata Gintoki and the Yorozuya on several occasions. He makes ugly and crude machines, and his belief is that 'The machines of men are armour, cannons and caterpillars'. Gengai has a bad habit of modifying everything he has at hand, forgetting to tell the items' users important instructions on how to utilize them until it's too late. This usually results in the items' users getting into trouble. Hiraga Gengai was first introduced in Episode 17. Seemingly as a normal mechanic, the Yorozuya later found out that his only so...