A brief description of the Seirei Gensouki – Konna Sekai De Deaeta Kimi Ni manga:
The fusion of souls sometimes rewards people with amazing abilities. Especially if their aspirations are on the same wavelength. A slum boy named Rio wants to find his mother’s killers. And the young Amakawa Haruto has never met the girl he knew as a child and lost contact with about five years ago. He dies and is transported to another world, where his soul has found refuge in the body of a poor boy – Rio. Their personalities, endowed with different experiences, ideals, memories and visions of life. They were destined to become one. Rio Haruto’s new life offers the teenager amazing opportunities: he gets a “special power” that he intends to use to make his life easier. But it wasn’t there! Before his eyes, the Princess is kidnapped and the Kingdom of Bertram is now in danger. Get involved or not in the cycle of state intrigues, what solution would be right for him?