Apocalypse: No rebirth! Time to upgrade the sewers!

Extreme cold + shelter + superpowers + harem + wish-fulfillment novel + system
The game starts with you running into the sewers and awakening the shelter system.
Song Qing had not eaten for four days because of the extreme cold of the apocalypse.
He went to find his good friend Ye Chen, but... Ye Chen wanted to kill him!
Song Qing had no idea that the person who wanted to kill his good brother was:
(Reborn + Surname Ye + Crooked-Mouthed Dragon King + Shelter + Space)
This is totally the main character setup!
Song Qing escaped death and ran into the sewers, where he could already see a revolving lantern!
Just then, the system awakened!
(The Ultimate Shelter System)
He can help him upgrade his shelter!
It's not over yet! Immediately afterwards, an unknown energy appeared within the male body! The system helped him forcibly awaken it.
(Gluttony ability) can completely steal the abilities of others! It can also steal the abilities of animals!
The mutated dog's sharp claws, the mutated rat's night vision, the mutated giant lizard's stealth...
Song Qing: "Ye Chen! Your spatial ability is mine now!"
(No cultivation! No cultivation! No cultivation!)