Genichiro

the definition of a crazy grandson who risks everything for his family and his country, able to bring his grandfather back to life from death,able to redirect lightning more than one time,two times specifically,kidnapper,professional warrior,high archery skills,can teleport using the lightning(just once tho),way better and cooler looking mortal blade.

A grandfather says to his grandson: "I think you should become a genichiro and genichirate later in life"