In the Hein family kingdom, there is a harmonious family, but this is only from the perspective of ordinary people.

The first prince, Arnold Hein. Going through such tough days as the crown prince.

He received various pressures from his family. Until one day his mother, the queen, had another son, Theodore.

Arnold became increasingly depressed, to the point where his mental state was disturbed, which caused him to lose control and end tragically in the kingdom. Arnold killed both of his own parents when he was still a teenager, except for Theodore. Arnold didn't kill him, for whatever reason.