Spartan Reincarnation - Chapter 2: Helots

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.

Why does Ryunosuke Yusheng commit suicide frequently?

Why did Tohsaka Tokiomi hunt down his disciple?

Why doesn’t Jin glitter cooperate with the emperor?

Why is my king homeless?

Behind all this, is the distortion of human nature or the loss of morality.

Please read this book, a man who plays tricks by comics.

- Description from novelbuddy

Su Tian traveled to a world dominated by knights, where the “Knight Century” prevailed.

Knight Century is a virtual game that spans centuries.

The high-end players in the Knight Century are like stars, known to the world,

And the first Kamen Rider Su Tian got was Kiva!

However, Su Tian found that after he became a kiva, there seemed to be more memories of Hongdu in his mind.

Is this asking God to possess you? Pick up?

Su Tian, ​​who has the memories of the True Kamen Rider, finds that he is simply a dimensionality reduction blow in the knight century.

Not only that,

A series of Kamen Riders obtained later,

There are corresponding memories.

For example, the memory of the head of heaven with one hand pointing to the sky,

The memory of Master Qiao, who guards the dreams of others,

The memory of Wang Xiaoming passing by,

Memories of old Shogo who became the Demon King and so on…

Su Tian: “I just found a proxy, it’s really not cheating!”…

- Description from novelbuddy

When MC was reliving a picture of a goddess, he died. Only meet the goddess, but instead of torturing him to eternity, she gives him wishes. And make him reincarnated in the Overlord world.As the name suggested, this is multiverse Fan fiction, that means MC will travel through different world like Marvel, DC, High School DXD, My vampire Diaries (may be) , Demon Slayer, etc.first world: Overlord (Chapter: 1—60)second World: Highschool DXD (Chapter: 60—215)Third World: Demon Slayer(Chapter: 216—)Fourth World: New World (Overlord)There will be a harem, no NTR or stuff.Some of you might dislike the Yggdrisil arc as it is a bit of AU and MC talk a lot. But it is only in this arc on world travel that I will tone down his unnecessary internal monologue.I am not a professional writer, and I have no deep experience in writing, so please ignore my grammar mistakes and such. I also took some inspiration from other fan fiction.It would be a great help if you could donate your power stone to me.