In the world of the Last Valkyrie, the Western gods are about to exterminate humans.

At the critical moment, Xun Yu arrives with the chat group of all the heavens and worlds.

The battle of Ragnarok begins, and humans and gods each need to send thirteen representatives to participate in the battle.

[Group leader Xun Yu: Everyone, the gods of this world want to destroy humans, is there anyone who wants to fight? ]

[One Punch Saitama: It seems very interesting, count me in! ]

[Kakarot Sun Wukong: Group leader, are the gods of that world as powerful as Lord Beerus? Can I come too! ]

[Space Prodigal Hong Kai: Can Ultraman join the battle? ]

Welcome to this system! You've learned how to move forward, backward, and slash. Alright, now use those skills to achieve a 100-kill streak! (100/100) Good, well done. You've achieved a 100-kill streak. The list includes, but is not limited to: Oda Nobuhime, Kikyo, ...

Traveling back in time, Saigyouji Hanyu finds himself in the Heian Period, a thousand years ago. The dog demons of the west are just beginning to rise, the raccoon cats of Shikoku are emerging, the flower demons of Izumo dominate the Tono region, and the Onmyoji of Heian-kyō aspire to overthrow both the Yin and Yang worlds... His father is the sorcerer who sealed the Saigyou demons, his sister is Saigyouji Yuyuko, he has a mentor, Kamo Tadayuki, and his senior is the Onmyoji Abe Haruaki. To seal the Saigyou demons, Saigyouji Hanyu, who originally wanted a simple life, embarks on the journey to become an Onmyoji, but his life gradually begins to fall apart... This is the story of an Onmyoji, his encounter with Gensokyo, and a young girl.

[Nazarick Supreme + Doesn't follow the plot + Isn't a saint + Isn't mindless + Invincible + Time Travel]

YGGDRASIL was once a globally popular online game with a story background based on Norse mythology. Compared with other DMMO-RPGs at the time, it had the characteristic of "exceptionally high degree of player freedom".

And today, twelve years later, it has finally come to an end.

Mia Gabriel, one of the veteran players since the game's launch, specializes in dragon slaying.

The moment he descended upon the other world, the Dragon Emperor fell silent, and the True Dragon Kings faced utter despair.

Platinum Dragon King: You were unharmed after taking my ultimate explosion. Who is the boss between us?

OVERLORD fanfic

As a newly returned supreme ruler, Alucard, by chance, traveled to a new world along with Ainz Ooal Gown.

They knew nothing about this completely new world.

How will Alucard, the top player who once dominated "YGGDRASIL", face the problems that follow?

How will Alucard, dubbed the "moving world boss" by his defeated adversaries, survive in this new world?

How can we resolve the conflict between the supposedly invincible True Dragon King and the Sky City left behind by the Eight Desire Kings who ended the Dragon King era?

Let's look at the detailed explanation in the main text.