7th Demon Prince Jilbagias' Chronicle of Demon Kingdom Toppling - Chapter 114: Sacrilege Time

Ding Ning was just an ordinary youngster from a small border town in southwest China, but he had learned tremendous medical skills from his masters since his childhood. After graduating from college, he stayed in Ninghai City and tried to seek a job in a hospital there, but things did not go well at first. However, he accidentally saved Shen Muqing who was from a rich and powerful family, and then got involved in the confrontation between Ninghai special police team and a mysterious organization called Vampire Mercenary Group in order to protect Ling Yun who was his landlord’s daughter. It became the turning point of his life. After that, he started an incredible adventure during which he would find out the real identities of his father and masters and discover the secrets behind the mysterious organization Vampire Mercenary Group and the special weapons and tactics team Dragon Soul…
The story tells about how he opened nine apertures, fought with rogues, chased after various pretty girls and established a rich and powerful family by himself. He climbed up to the peak of his life step by step, and finally became medical sovereign.

- Description from Novelupdates

To save the hopeless Dark Fantasy World, I held back my tears and destroyed the world, then killed the Demon King and returned.

Now, I’m trying to save the world using the ‘System’ I gained as the ‘Regressor’s Privilege’… but the Main Heroines have also awakened their memories of the previous timeline.

God damnit.

Schiller became Batman’s teacher, a professor of psychology at Gotham University.On the first day, Bruce Wayne entered the psychiatric clinic.Schiller had to open the Meiman chat system and posted the first post: Batman asked me the meaning of life, how should I answer? It’s a hurry to wait online.Thanos: It is recommended to kill directly.Professor X: Don’t listen to the upstairs, I’ll use your mind-reading skills…Schiller Andel Rodriguez, a world-class master of criminal psychology, the most famous psychology professor at Gotham University, his students are both superheroes and super criminals, but he does not belong to any of them, Batman likes to call him “Professor”, Joker calls him “the coolest lunatic”, Scarecrow calls him “Arkham slipper”, and Nick Fury thinks he’s a “getter.”Be Batman’s teacher, Spider’s godfather, Iron Man’s psychiatrist, Schiller’s journey to American comics, starting with Batman at the beginning.[Other than translator’s site, all other sites have google translated content, beware. Don’t comment bad translation after reading other site content.]

Roy died during a war against the Evil God Cult, but somehow, he returned back in time to 30 years in the past where he was just a boy who awaken his summoning magic.