Anna is a rich, influential, and aristocratic girl... stubborn and proud. She has extraordinary natural talent and strength, but because she is an aristocrat, she was not destined to become a fighter. The seers predicted that one day the Queen of Demons, Lilith, would attack humanity and the only one who could save humans was Anna... This prophecy quickly spread throughout the realms and everyone wanted to kill Anna while she was still weak... So the capital decided to choose a master and a strong protector for Anna to both train Anna and take care of her.

They summoned Byakuya... The most powerful human, Byakuya has absolute control over the lightning element... With years of practice, he was able to change the origin of lightning and now he controls night lightning, which is much more powerful than lightning... Also, night lightning is purple instead of white... In addition to the fire element, Byakuya has a long katana sword, which, by combining the speed and power of the lightning element, has given him the power to be called the most powerful human... Byakuya is also the only human who can summon beings he thinks of.

Byakuya enters the room of the Queen of the Human Realm.