Dragon's Guardian Angel

Natsu Dragneel is the son of the fire dragon god, Igneel and lives in the human world to understand them and become a better god. His closest friend is his guardian angel, Lucy Heartfilla who was assigned to him since birth. One day he falls in love with a new transfer girl name Lisanna Strauss and tries to win her heart without godly power and is oblivious to Lucy's crush on him.