The year was 789. It was a stormy night in Norukudo, a village in Jinka. The country was exhausted and destroyed by the long wars. Only a few provinces remained, such as the province X24 in which our story takes place ...

The old man Karusa lives here. He lives on a large courtyard with a temple complex. He actually had everything you need to live. Just no wife and no children. But that night, someone knocked on his door. He went to his gate and opened it.
he called. Until his gaze fell on the floor. There he saw something that was wrapped in linen. He picked it up and discovered that there was a letter with it. And read it:

[i]Dear Mr. Wataka,
I want to hand over my son Horujiro to them. After the long wars, I have to hide. Because evil has not yet been defeated and will come back stronger than ever. Please train my son with all your skills and educate him. But be careful, he is a half-demon.At first he is like a normal human boy. But at 16 he becomes more and more of a demon. But the enclosed amulet will curb his demonic side. I have to nfidb .....[i]

Then the letter was over. Karusa took the boy into the house.
It was all five years ago ...
Horujiro has grown into a splendid boy.