There were two lovers who have different race a Human and a Demon, How did this happen well let me tell you.
In a Demon Castle there was a princess that loves to venture around that her parents doesn't like her doing. One day the princess did something that she shouldn't do it was to go to the Human Territory.
Upon entering a forrest she was met with a wild beast, Managing to escape with a few scratches feeling tired she sit near the boulder and fell asleep. Waking up she sees a wooden ceiling feeling anxious when suddenly the door open and a boy enter bringing a bowl of soup.
After eating the soup she thank the boy for treating her and and for the soup and asking him of what kind of reward that he wants for helping her to her disbelief she declined the rewards saying it was right to help the people in trouble.
Hearing this, our princess did something that you'll always read in the storybook it was then our princess fall in love to the boy who help her and she confess her love to him that she blatantly said yes without a though.
For days they would see each other in the forest as it was the only way to meet up as it was between the human territory and the demon territory. They talk about anything their adventure, their secrets and their life.
It was then that one day the princess said that she cannot see him anymore because her father was getting anxious of her getting caught and killed by the human like what happen to his brother.
The boy hearing this said that he will someday go to the demon territory to go to demon castle and meet his dad and talk about in a relationship with her.
Listening to him make her heart melt but she remembered that she was just a normal boy that isn't strong enough to talk to her father or go to the demon territory alone, when she said this to him he think about it and he would train to become strong just to see he and that it was a promise that will never be broken.
And so in the next day the boy trained for the promise he make, for months he trained and people are getting worried as they see the boy never stop training and when ask he only replied to go to the demon castle, hearing this the people didn't know what to do but it became a rumor that reaches even in the ears of the Human King.
A rumor of a misunderstanding the boy's training to become strong and a Birth a very first Hero of the Land.
Years later the boy is now a man wearing an Enchanted Armour that the King gifted him along with the Blessed Magical Sword that the best of the best Blacksmiths Created, Sorcerers Enhancement, and Church Blessings.
It was now the time for the promise to be fulfilled.