Traveling back in time, Saigyouji Hanyu finds himself in the Heian Period, a thousand years ago. The dog demons of the west are just beginning to rise, the raccoon cats of Shikoku are emerging, the flower demons of Izumo dominate the Tono region, and the Onmyoji of Heian-kyō aspire to overthrow both the Yin and Yang worlds... His father is the sorcerer who sealed the Saigyou demons, his sister is Saigyouji Yuyuko, he has a mentor, Kamo Tadayuki, and his senior is the Onmyoji Abe Haruaki. To seal the Saigyou demons, Saigyouji Hanyu, who originally wanted a simple life, embarks on the journey to become an Onmyoji, but his life gradually begins to fall apart... This is the story of an Onmyoji, his encounter with Gensokyo, and a young girl.

"Kasumigaoka-san, I like you, please go out with me!" "Sorry! I prefer someone more mature, you are not within my consideration range!" "Kitagawa-san, please go out with me, I..." "You are a good person, but we are not suitable!" "Nagase-san, forget it... forget it..." Traveling through the world of daily anime, Byakuya thought he could start a relaxed and happy love life, but after confessing to countless anime heroines, he was rejected, and eventually became the laughing stock of the whole school and a loser. From then on, he was motivated to pursue his career and suddenly found that he seemed to have the ability to brush his identity. In the Naruto world, he is Uchiha Byakuya who is about to face the night of Uchiha clan extermination, in the world of One Piece, he is the legendary pirate of the Rocks Pirates, in the Inuyasha world, Seshomaru is his stupid Odo... Arad, Valoran, Fairy Tail and countless other worlds, Bankai travel + daily life: Spring Festival, passerby heroines, changing dolls, Nagase-san, etc.