Tensura Guardian of Nature

Warning before you read: I do not own the cover, if the owner doesn't want me using it I will take it down. I do not own any of the characters that will be mentioned in the story there will be some OC like my MC but most of them will be credited to their respective creators. -- Synopsis: A boy who regrets not having the power to save his family when needed. After he dies he gets a chance to reincarnate and chooses to be a guardian. (simple right （⌒▽⌒）)