Damn, I Have to Marry the Strongest Antagonist at the Start? - Chapter 40 - -Duel to the Death

Masterpieces such as 'The Divine Comedy', 'The Theory of Evolution', 'Encyclopaedia Britannica', 'The Theory of Relativity'...Born in the history of human civilization, possess mysterious and magical powers in another world!Original sin, biological evolution, mastery of all arts...By reading the secret tomes, one can gain a variety of powers!The only trouble for the people of the other world is that they find it difficult to understand the texts from Earth.At this time, there comes a librarian from Earth...

prev name: In mha with jjk power.---------[mha synopsis]“Hero? Villian? It is all redundant.”“There is no such thing as good or bad, only interest is what matters.”Kurokai Sento said as he faced the inheritors of One For All and All For One standing against him with their fellow Heros and Villains.“Why? Why?! Just what is your motive?! Kurokai!”Kurokai smiled and replied calmly.“Motive? Of course, there is, unfortunately, none of you can understand.”--------------------------------It is a multiverse travel type of fanfic. The first world will, of course, be MHA(complete). Then Overlord(Ongoing), danmachi(ongoing)You can directly start reading from Overlord if you want, it won't affect the flow.---------------[Overlord synopsis]Lioro blankly looked at the game like screen in front of him.It seems he has traversed to Overlord world with a Yggdrasil like game template![Ding! Congratulations on getting the special profession 'Dimensional Traveler']“......”Can it take me home?

Florentia was reincarnated as the illegitimate child of the richest family in the empire.

[When the stars return to their positions, you will ascend to the throne.]At first, Bai Yi thought he was just dreaming.Then, he thought he was playing a nightmare game.In the end, when the dream became reality, and the game rewrote reality,Bai Yi discovered that he was not only the sole participant in the game, but also the only GM——Bestowing souls to all things, granting rebirth to the dead, twisting the rules of matter, creating absolute truth, writing real lies…The entire world is rewritten by him.[——The stars hold up the brilliance, casting a throne for you.] [——What you think and imagine will become reality.]***Everyone woke up to find that the entire world had changed.Spiritual energy revived, and the mysterious appeared.Ghosts prowling in the rainy night smile elegantly amidst the bloodshed;The mysterious flower shop owner awaits your visit in the depths of misfortune;In the reflection of the city, the shadow council remotely controls the world;In the sealed ancient painting, evil spirits are greedily watching your soul.Immortal arts, magic, martial arts, demons, ghosts, undead…A wave of mystery surged in the world.Someone is weaving everything behind the scenes, making the whole world dance with it.[——He is the source of all legends.] [——He is the mystery itself.]