After Six Years in a Mental Hospital, I Turned Out to Be the Demon Queen with Strange Eyes

[Innocent demon king male protagonist + beautiful, strong and miserable awakening female protagonist + double cleansing + HE] I was treated as a lunatic and imprisoned in a mental hospital for six years. Everyone bullied me and humiliated me, only treating me as a crazy girl who talked nonsense. On the eighteenth birthday, the gilded demon pattern on the right eye was completely unsealed, and all the demons knelt down to worship: Welcoming the return of Her Highness the Demon Queen! It turns out that I am the Demon Emperor who has been searching for me for thousands of years after sleeping among the demon clan for thousands of years. He traveled across two realms to find me. The black dragon's pressure protects me. Everyone who abandoned me, harmed me, and ridiculed me in the past, including the hypocritical director of the orphanage, the director of the paranoid mental hospital, and all the people who made trouble for me, in this life, I will take care of them all, and I will not give up any of them.