Chiku had a pretty traumatic early childhood. He witnessed his parents from the upper class openly abuse their power. They didnt even make it somewhat discreet. They straight up told people "If you don't listen then perhaps... You wont be here tomorrow." It made him so mad so one day he killed his whole family in a state known to his family as Archdemon mode. This is a power only in his family where a demon goes into an enraged state where they lose control of themselves and become 100 times more powerful. He works to control this Archdemon mode so he can be both powerful and in control. He is really sad inside but he tries his best not to show it. It works a lot. He really seems happy and energenic but he covers up a great sadness inside.
Picrew