A Hentai System in the World of Danmachi - Chapter 20 - 19 - Harem System.

Always looked down upon by others, Ji Feng gains technology far more advanced than the present, as he discovers its abilities, he begins to walk a path far from ordinary. With X-ray vision allowing his to find jade stones in rocks. With this futuristic technology, Ji Feng accomplishes something no-one can compare to. This is the beginning of a legend.

- Description from Novelupdates

Alix, a devoted player of Strongest Kingdom, finds himself reincarnated as his in-game avatar—the powerful and fearsome Demon King—in a mysterious and unfamiliar world. Armed with his gaming prowess and a penchant for stirring up trouble, Alix must navigate a realm fraught with danger, intrigue, and opportunity.As he discovers the secrets of his new domain, forms alliances, and faces relentless foes, one thing becomes clear: chaos follows wherever he goes. Will Alix rise to become the ultimate ruler, or will his wild antics lead to his kingdom's downfall?Join him in this thrilling, action-packed adventure where strategy, humor, and epic battles collide!

Why is there a person on Mars who is not wearing any protective clothing?

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Jason wearing a hockey mask stabbed someone in the back and was cut in half with a backhand? !

“Friday the 13th: Backstab”

Kerrigan brought the swarm to the human colony star, and found that countless equally ferocious monsters had already been prepared.

Zerg Descends: Biochemical Frenzy

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“Ha, why does every time I go to a world, I always encounter some strange things!” Li Wei’s hands turned into dark red claws, provoking Freddy’s small body.

- Description from novelbuddy