Fate/Cultivation

Shen Wenyan. A completely "normal" teenage boy who has been alive for over 300 years was sent to another world by an "undying troll". But the reason for his displacement was not for amusement or entertainment. But to preserve his secret. The container of the Throne of Heroes... The secret to the Third True Magic... The pathway to the ROOT... All contained within the body of a 15-year old boy...