"Heros, Huntsman, Angles, Demons or whatever the hell they're all the same, they kill their enemies which are creatures but when it's a human being that actually talks to us, they'll be brung to Justice, but what type of Justice, is it the death type, or is it bringing them to prison type, I prefer the first one, they think killing is wrong but when they do it, they didn't mean to kill them or they never had much of a choice, they felt guilt, how I feel is no regret and not guilty, I kill my opponents without mercy and not even thinking, when the headmaster's heard about my record and activity of my missions they've decided to kick me out along with my team which was a wise mistake for them, I never wanted to be there in the first place, but I may feel sad for leaving my other friends (Harem), since the headmaster's don't need me, we can fight powerful creatures without warning to become the true heros and do whatever the hell we want."
Kanda Kyoichi transmigrated to Konoha and became a temporary instructor at the Ninja Academy. Fortunately, he awakened the Mentor System.
By teaching others, he could earn rewards.
Thus began Kyoichi's career as a "teacher" in the ninja world.
Shisui: "Sensei's unique interpretation of the Will of Fire has given the Uchiha Clan a true sense of direction!"
Asuma: "The essence of the jade lies in protecting the people, with the advanced leading the way for the less experienced. Only then can Konoha become stronger!"
Kakashi: "He's my life mentor. He transformed Konoha!"
...
Years later, in the memoirs of Kyoichi, now the Hokage, he wrote:
"I honestly just wanted to be a life mentor!"