Extra's Harem: Invincibility Starts with Marriage and lots of Children - Chapter 8 - - A Cliché Side Character

This story unfolds during the later stages of World War II, where a man, scarred by the horrors of war, finally grasps the profound and harsh realities of the world. In this world, those at the top laugh and celebrate, while those at the bottom sacrifice their lives in futile conflicts driven by pride and meaningless ambition.A modern soul transmigrates and fuses with the original soul of a body, creating a unique and extraordinary existence. To some, he is a villain; to others, a madman.In a world steeped in cruelty, this man, determined to secure a place among the decision-makers, struggles to break free from the ranks of those powerless to control their fate. To achieve his goal, he resolves to shatter the chains of law, then the chains of morality, and finally the chains of mediocrity.

His legendary class is The Husband Of Deathwill Sisters!

While other players went through common quests to get their classes, Alex started by getting a legendary class: Husband Of Deathwill Sisters! He got three beautiful wives from the start and the legendary castle!
What would his girlfriend and friends say about this once he reveals his class to them?
And what about Deathwill Sisters? What is their plight, and why would they suddenly get a husband?

Void plane: synonymous with terror and taboo, no one knows how big the void is, because it is growing every moment, and anyone who talks about the void will be shocked.

Void Lords: The voices of the Void plane, the plane’s invaders, conquerors and destroyers; they lead the Void’s armies all the way to war, and when they discover a new plane, they will do everything possible to pull it into the Void embraced by the Void’s reward.

QQ group: 853231441

- Description from novelbuddy

Reborn into the world of Yugioh, it's natural if my goal is to become the best duelist!