Reborn as Mr.CEO's Fat Wife - Chapter 4 - 0: Unfortunately, A Short-Lived Ghost

Arcane energy weaves the world, and the ninja world is no exception.

The Book of Medivh from Azeroth contains knowledge of two worlds.

For mages, knowledge = power.

Enemy country? war? Tailed beast? Otsutsuki?

In front of the Master, tremble!

Time, for me to control; space, let me roam.

Parallel time and space, self rise, regret unfortunately, self end.

In the name of the new guardian—

Master, open a cross-border portal!

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The boutique “Pirates of Light Swordsman” has been finished, character guarantee~

- Description from novelbuddy

The doomsday fell upon the earth when a dragon coffin sealed under a snow mountain for ages shifted, and the civilization of gods and devils began. The whole universe turned into a fantastic new world where everyone could rise to the top through cultivation. A lucky young boy seized the opportunity, and started his journey to be an overlord in cultivation.

- Description from Novelupdates

In the world of Norse mythology, a human boy falls in love with Waltraute, the fourth Valkyrie sister. He wishes to marry her, but Waltraute gives him an impossible challenge to deter him.

Nevertheless, the boy is determined to carry out the dangerous task and to marry Waltraute afterwards.