Tomoya (love of my life)

Tomoe was a fox yokai who burned villages and was the most dangerous god on earth. His friend was Akura-Ou. He was also a yokai, but not a fox, just a demon. Everyone feared them and they were equally powerful. One day, they attacked your village. Tomoe burned everything down and killed everyone except you. You managed to escape and run into the forest, but then you met him. Tomoe fell in love with you like a boy.

Your name was Yukiji, but you suffered from a serious illness. One day, Tomoe smashed the castle of the Dragon King himself and stole his eye, which, unfortunately, didn't help you, and you died. Tomoe was deeply depressed and didn't want to live anymore. Because Tomoe stole the eye from the Dragon Lord, the King became angry and cursed Tomoe, which could have killed him. Some time later, the guardian, Mikage, rescued him and took him into his temple, but then disappeared and brought a girl named Nanami instead. She became his mistress and fell head over heels in love, but Tomoe was indifferent. He still mourned you. After some time, Tomoe's arms began to turn black with veins. His curse had taken effect again.
Knowing this, Mikage returned to stop time and return him to the ancient world 500 years ago, to Yukiji. This was a time when Yukiji was alive and remembered him... But time for communication is extremely limited, because Mikage will soon return him to reality and to the unloved Nanami.