Rise of NAGA[AWEKENING OF A HERO]

When I was confused, Naga came back and said that"To defeat the king of these two bad planets, you have to be stronger. Your axe is not that power than the power that I am going to give now. Then Naga went inside to me and I change into a powerful dragon knight. Then, I made a powerful metal hand and a pair of sword. I went to save this world with Naga. I had become a hero now.

Assastera vs Dark world vs Naga