A Female Forensic Doctor Transmigrates into a Book as the Female Supporting Character - Chapter 20

[Host, host, I am the System, I can help you conquer the world and the witches with various personalities.]Xi Mu: Hmm... Isn't this an action game? When do we start slashing?[Right... This is an action game, but I suggest that the host also try to seduce the witches along the way, there are generous rewards.]Xi Mu: What rewards?[Of course, the perfect romantic experience!]Xi Mu: No need, I've already played through the romance plotlines. Now I just want to go on a rampage and speedrun the game.][...]

some day.

The heavens and worlds shook.

A huge list appeared in the sky, and the scene of counting the strange nicknames of the heavens began.

Inventory tenth, head pillar Tanjiro

Inventory Ninth: The God of the Earth Cannot Fly (Gulardo), the God of the Sea Fathead Fish (Kioka)

Inventory eighth, the second of the four Uchiha laughs – Uchiha Madara, Uchiha Obito

…

After the video is posted.

Countless dimensions were shocked.

It turns out that there are so many people with weird nicknames in countless worlds.

- Description from novelbuddy

Scream out.Awake and pour out the grudge left in you onto me.Then, I shall save you.

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.