Another Stupid Isekai - Chapter 925 T.D.O.N.B: S15C, Part X - The Fallen

I exist in the darkness, disappear under the bright light, and will eventually devour the sun and turn into the shadow of all things… Known by people as the indescribable terror of darkness; the king of shadows; the dark day; the existence of the shadow of the world , is still just a somewhat special high school student, facing a weird death game…

- Description from novelbuddy

When entire star systems begin vanishing without a trace, the shadow agency NEXUS turns to its last resort - Eric Blackmoor, a disgraced ex-agent and multiversal genius buried in guilt, alcohol, and exile. Once hailed as the mind that could solve anything, Eric is now infamous for an invention that annihilated a planet and billions of lives.

William watched his family get slaughtered at the dawn of the Apocalypse.A demon placed his brother’s beating heart on his lap before death claimed him.for reasons unknown to him, he woke up inside a novel with a strange yet powerful system bound to him.“For all the demons in existence, I will be their End”“or the one behind the apocalypse, I will become the apocalypse itself”----------------------PACING: Stakes will be high, pace will be on the faster side.HAREM INFO:#no Yuri and no incest, not NTR, not all women will be part of mc's harem, and the harem will not be a Pokémon collection, every Fl will be developed and will be given attention.DISCORD SERVER (ASK ME ANYTHING HERE): https://discord.gg/8M4SyARCYQ