WHAT EXACTLY AM I?

What exactly am i is about Kenji who were the Rightful heir of the Empire but he's too young to rule so his older brother take responsibility, it all happened when thier parents are gone so he decided to not sit on the throne cause of the pressure but suddenly thier greatest enemy we're realeased from the seal and They cant do nothing to save the city but not its residents, the siblings went to different path after that, Kenji(the MC)was the youngest of them all became lost when His older brother Haruki's teleportation fail so he went to survive on the jungle honing his skill more and went to an outskirts town to live and became an adventurer and merchant