the god of dragon

there's a young boy named Ryan who left to go Adventure every day every night everywhere but one day when he was climbing a mountain he fell off it and transmigrated into another world . the boy found himself in that circling off a lot of people who wish to give him the power of their predecessor but he did not even know he die and still think that is a dream but the moment the power transmitted through the boy .when the people have transmitting their power to him he blackout . he awake in a new world where God .Dragon. devil .angel. elf where all real and he was tasked to help the world. this is just a story that is stuck in my head so I am writing it for fun and you have to know one thing I'm 13 year old so it has very bad grammar so when you read you have to imagine really hard OK .