I Can Hear a Serial Killer's Voice in My Head - Chapter 10: The Third Case (1)

Holy Lord, possesses the ability of zodiac signs, dragon charm, can spray high-temperature flames, pig charm, emits laser light from both eyes, horse charm, heals all injuries, dog charm, immortality, rabbit charm, possesses light like or even surpasses light speed, chicken charm, suspended in the air, monkey charm, transform into any form, snake charm, transparency, sheep charm, soul out of body and even control soul, tiger charm, adjust yin and yang, rat charm, grant the ability to move still objects , the cow charm, has infinite power (some abilities are fabricated by me), this article is about the protagonist who has the Holy Lord system, travels through many anime worlds, and promotes his majesty… [Diga (in progress) Hokage (unfinished) Open) Pirate (unopened) Attack on Titan (unopened) Tokyo? Brother Zheng ㄎ Chun? Kai) Conan (unopened)…〕

- Description from novelbuddy

The tale of Oliver.
An orphan boy from a Mine, in 19th century Europe, filled with Magic.

Ye Huai has two goals in his lifetime: to be a good doctor, and also to be a good doctor who is surrounded by handsome men.

Unfortunately, after being a doctor for 10 years, he lost his job because of a very handsome man.

What should he do?

520: Congratulations! You have been successfully bound to system number 520. The Save the World Task Set is coming soon……

Ye Huai: ? ? ? ! ! !

So, today Doctor Ye is busy saving the world……

520: Lies! You are clearly trying to pick up guys!

Ye Huai: No, I am very dedicated to fulfilling the great ambition of saving the world.

Narcissistic and Complex Shou X King of the Silver Screen Gong, along with the newborn system number 520 whose three views are crumbling and reestablishing every day.

- Description from Novelupdates

The consciousness of a Great Magus suddenly returned to his original body on earth, just before he transmigrated into the magic world.

Nothing has changed, it's still the same earth.

However, when he looked at earth once more as a former great magus, he discovered earth was not as simple as he knew it to be.

Hidden magus, legendary races such as vampires and werewolves, they do exist, ruling the world through the shadows.

Faced with a former great magus, who possessed as many spells as libraries, would the earth that had been ruled by a few people be able to remain calm?