MTL - I Try To Become An Immortal Through Mortal Science - Chapter 12 killing karma

I became a ghost in the horror game [Mystery Exploration Club ~Summer Vacation Nightmare~]. Give me back my body.Translator’s summary:Han Yoo-hee is an unlucky man who fell into the world of a horror game and became the tutorial boss.Now, wanting to go back, he will guide the protagonist and her group through the game and achieve the ending, confronting many different monsters and finding more about the truth of this world.

In a world where dungeons are worshipped as divine trials and the System is hailed as a blessing, Beno Mark knows only one truth—everything is a lie.Haunted by the sin of killing his own parents, burdened by guilt, and shattered by the disappearance of his younger brother Renzo Mark in a mysterious Violet Gate, Beno spirals into madness, questioning reality itself. The System, which promises power and salvation, is nothing but a trap, binding the souls of countless hunters. The world itself is not as it seems—vast beyond imagination, hiding secrets that even the gods fear.Yet, Beno refuses to crumble. Driven by obsession and guilt, he awakens the cursed King System, the most forbidden and dominating force ever sealed. As fragments of truth and ancient conspiracies emerge, Beno, alongside Luna, Charles, Raul, and Isabella, begins to unravel the world's true history—a truth that has been hidden for centuries.What is the Violet Gate? Who controls the System? And why was Beno chosen as the vessel of the King of All Beings?The path is clear.Kneel... or Bleed.

Back in 1991, in the face of this golden age, Chen Jianghai swears that he will only live in three words in this life: Lin Wanqiu! The story of a reborn person who built an electrical empire and reached the pinnacle of his life!

- Description from novelbuddy

300 years after becoming a Demon King, the war angel Ansel faced a serious problem during a certain expedition.

——His halo grew out once again.

Ansel picked an auspicious place that was definitely and absolutely unmanned, and while cursing, he simply and skillfully broke off the newly emerged angelic aperture.

This thing was growing out faster and faster!

When will his undercover mission end already?!

The demon realm was divided and ruled by three kings. Demon King Saros was forced to go on an expedition with his sworn enemy, Ansel.

One day, he noticed Ansel sneaking away from everyone.

Saros decisively followed him, and was shocked to find that his sworn enemy, another demon king of the demon realm, took off a horn headband and fake bat wings. As Ansel cursed up and down, Saros watched as he skillfully removed a cute halo from his head.

This irritable, easily angered guy who loves fighting; the type that was cute when he shuts up but could make even demons angered to the point of ascending to heaven the moment he opens his mouth…

..was actually an angel???

- Description from Novelupdates