MTL - The Legendary Mechanic in Marvel Universe - Chapter 50 found it

[Post-apocalyptic + System Space + Stockpiling + Base Building + Strong Female Lead + Reverse Harem + Not a Mary Sue]Who says a five-year-old can only be a burden?Cloud Xiaoxiao, a formidable survivor in the post-apocalyptic world, is reborn six days before the apocalypse hits. Unloved by both parents and unwanted after their divorce, she decides to take matters into her own hands.At just five years old, she goes on a rampage. She empties out her father’s supermarkets and 4S car dealerships, landing him in the hospital.Armed with a super system in a world ravaged by zombies, extreme temperatures, and acid rain, she hoards enough supplies to last several lifetimes. She becomes a base-building maniac, constructing the strongest fortress in the post-apocalyptic world.Sunny Boy Next Door: “Little one, want big brother to sing you a lullaby?”Unlucky Bandit: “Kid, what do you want? I’ll get it for you.”Cool Big Brother: “Don’t be afraid. I’m here.”Yandere Hottie: “Little one, call me big brother and I’ll kill them all for you. How about that?”Hot-Tempered Brawler: “Shorty, who’s bullying you? I’ll beat them to death!”…Cloud Xiaoxiao hastily raises her hand, “Stop, stop! I can take on ten at once!”“Whoever dares to bully me, I’ll finish them off myself!”(This story has no romantic pairings. Readers who mind this, please be cautious.)(The female lead appears innocent on the outside but is actually a wolf in sheep’s clothing. Her personality was shaped by the post-apocalyptic world, growing beyond the bounds of normal rules. So she’s a bit ruthless, a bit wild, a bit wicked…)

He’s in the deepest part of Jianghu.

Keep your eyes wide open.

If you do not wish to get dragged into the abyss.

After possessing the game’s villain, my goal was solely one thing –

To escape from this cursed game world.

[Embrace a death befitting a villain]

I failed on the first run.

But I resolved once more to escape this world…

“I missed you, Kyle.”

Yet the heroines who once loathed me began to plead for my affection.

Lu Ran had long since known that his path in life differed from others when he awakened a special ability one day. Sure enough a mysterious black card appeared, giving him the chance to become a beastmaster. With his loyal husky by his side, he sets out on his path to greatness.