Rebirth: Living in Wilderness with My Superpower

In the apocalypse, Bai Junjun and her arch-enemy wiped each other out fighting over resources.
When she opened her eyes again, she unexpectedly found herself in ancient times.
The apocalypse's big shot had turned into a refugee fleeing famine.
War, famine, plague, bandits... dangers lurked everywhere.
Fortunately, her Special Ability had followed her.
The Wood-series Ability was incredibly useful in fleeing war and famine.
Facing famine, a flick of her fingers made food grow wildly.
Facing plague, by casting a Healing Technique, she became immune to all diseases.
Facing bandits... as long as... as long as she aligned with the strongest Seven-Person Team, who would dare to attack?
There was just one problem—the leader of the Seven-Person Team was her ex-fiancé, who was one foot in the grave. That was a bit awkward.
They used each other for their mutual benefit,
She provided food, and he ensured her safety.
But... the ex-fiancé was a bit of a glutton, wasn't he?
Until an accidental intimate encounter,
Bai Junjun suddenly saw a vast Space.
Wait a minute!
The food that she had grown with her Special Ability... was it all in here?
This guy actually had a Space!
...
They broke off the engagement at the height of prosperity, and they reunited amidst chaos.
When both the male and female lead have changed their hearts...
Two max-level bosses meet on a narrow path in ancient times, eventually joining forces in a story of internal spiraling competition.