Shen Zhou, a 24-year-old corporate drone, dies suddenly after staying up all night and gets bound to the Strongest Villain Conquest System. His mission: conquer Gu Ye, the strongest villain in the cultivation world. Failure penalty: his soul will vanish.
Shen Zhou: Wait, I can't even handle a bad customer review. You want me to conquer a demon?
On his first day after transmigrating, he takes a spiritual root test and turns out to have a mixed spiritual root. Everyone laughs. Shen Zhou says without a change in expression, "My store manager's insults are way harsher than this."
The System's golden finger: cooking boosts cultivation. Shen Zhou: "I couldn't even make instant noodles properly back in the modern world, and now I've transmigrated into a master chef? Fine, I'll go chop some tofu."
Gu Ye, meanwhile, is the cultivation world's strongest villain. She's lived alone for centuries, and everyone turns pale at the mention of her. Ruthless and undefeated, her icy exterior could freeze a person solid. She's clueless about intimate relationships, and the word "shy" isn't in her dictionary.
That is, until Shen Zhou smiles at her.
Gu Ye turns her face away, expressionless. Her ears turn red. Shen Zhou: "Why are your ears red?" Gu Ye: "I'm hot." Shen Zhou: "It's raining today." Gu Ye: "...Stop asking. Ask again and I'll kill you." Her ears are still red.
One has plenty of theory but no real experience; the other pretends to be calm, though her body tells the truth. The everyday schemes of a corporate drone and a tsundere demon start with chopping tofu.
Theme: She was born with a sacred body meant to maintain the Heavenly Dao, but the System turned her into a villain.