The Super Son-in-Law of the City

Xuanhuan, Cultivation, and Xianxia with Ruthless, No-Nonsense Protagonists

I’m out of books to read. I want a decisive protagonist who kills without hesitation and isn’t a do-gooder. I don’t mind whether there’s a heroine, but no flirting around. If he can get the girl, he should. And please, no plots where the wife and kids are captured from the start, moved somewhere else, rescued, then taken somewhere else again, so he never gets to see them at all.

An Empress with a System Who Gets Jealous Easily, Devoted Male Lead, No Harem

An Ancient-Era Son-in-Law with an Invincible Power Hidden in the Shadows

Just make the protagonist invincible, and that’s all there is to it.

Any Modern Urban Immortality Novels?

I'm looking for stories set in modern society, not fantasy worlds. Ideally, something slice-of-life, like visiting old friends every day. I feel like a lot of immortality stories make their protagonists act out of character. They're so old, yet they behave like children and have no gravitas at all.