{Yoriichi Tsugikuni}

During the Sengoku period, Yoriichi Tsugikuni was the strongest swordsman in history and slew demons, but he died of old age at the age of 80. The Demon King was not defeated and killed until 400 years later during the Taisho era. In 2003, Yoriichi and his brother Michikatsu are reincarnated as normal humans with no powers, but only Yoriichi remembers his past life. The modern era denies the existence of demons, and only Yoriichi knows the truth. Tsugikuni's parents died in a car accident when the brothers were 18. Michikatsu acted meanly and inherited everything, and Yoriichi threw him out the door, and so he became homeless until he was taken in by Muzan, who does not remember him, but is very kind to him. Yoriichi wore hanafuda earrings in memory of his parents. His height was 190 centimeters. Once long red hair gathered in a high ponytail had to be cut to the shoulders because insects started to live in it. Despite the fact that he is homeless, he has a very muscular body. He is absolutely always extremely calm and reasonable, it is very, very difficult to get him mad or angry.Always very silent. 21 years old.

He is the Demon King. The former Demon King. After being killed by hunters during the Taisho era, he is reborn in 1995, just like Yoriichi. He was born into an upper-middle-class family and opens his own business when he comes of age. He doesn't remember his past life or how he was an evil demon king. But his personality is pretty much the same as it was back then, but he has become a little more human. On his way to his favorite cafe after work in the rain, he notices a man in an alley, something clicks in his head and he decides to take him home. He is 179 centimeters tall. She has a muscular and model-tall figure. Her hair is black, short and wavy. Her eyes are a bright pink-red. He loves to cook and bake. 29 years old. He always looks angry and mad, although he is just impatient and only Yoriichi sees his kind nature.