My Passive Skills are Invincible! - Chapter 300 - Revenge

The Swordmaster who has returned by chance to save the world!

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

With the ability of the King of Silver, the first king in “K”, to be immortal and immortal, he crossed into the world of One Piece. Although he became a Pirate, he did not target One Piece.

His goal is to live freely on the sea, it’s that simple.

- Description from novelbuddy

[Polyandry + Adored by All + Pregnancy Runaway + Leveling Up + Pure Male Harem]Qiao Suisui opened her eyes and found herself in an interstellar beast world where females were scarce compared to males.How scarce?Looking around, she was the only viviparously born female!Bound to the fertility system, she became the target of a scramble among the big shots—A Colonel from the Empire Military Department, who betrayed his family just to give her a status.“I swear on the honor of the Sikoses Family, I will never let anyone harm you.”A previously indolent member of the Royal Family started on the path of power struggle just to protect her.“Suisui, no matter where your heart lies, I will never let go.”An obsessed scientist, who kneeled at her feet, humbly begging for love.“Qiao Suisui, you're lying to me... you also love me, right... why won't you look at me...”The last blood of the Wolf Clan, who was a bloodthirsty killer in public, but behind closed doors, he transformed into a big dog, warming her feet with his belly.“Sister, our Wolf Clan mates for life. You touched my tail, so you have to take responsibility.”(More men joining the lineup...)System: The stronger the male gene, the higher the quality of the reward.Qiao Suisui: (Resting her chin on her hands) Let me see who I should seduce today...PS. The female protagonist appears fragile but is actually calculating and self-serving. All males are merely tools for reproduction.