He is the Emperor of Darkness in the film, he is a bloodthirsty Shura who is both good and evil. An accident caused him to be sucked into a rift in time and space. When he woke up, he found that he had traveled to the world of tutors, and he became the protagonist - Sawada Tsunayoshi, and met the people he wanted to protect throughout his life. I am your sky, I am stained with blood for you, and I am willing to protect you with my life!