Demon Lord Gets Married - Chapter 4

A con-man and policewoman that are legends of their respective professions suddenly die, then are reincarnated and return to the Tang Dynasty of ancient China as little kids.

Accepting their second chance and forced restart, they choose to use the modern knowledge and specific talents that they have in their previous lives in order to live comfortably in this new life.

- Description from Novelupdates

Ludwig Heart, the heir to a vast fortune and a life of luxury, craves only one thing: freedom from his gilded cage. But when a plane crash catapults him into a world of magic and danger, he awakens not as the hero he dreamed of, but as a victim in a twisted ritual. Trapped between the ambitions of dark necromancers and the wrath of vengeful gods, Ludwig must navigate a deadly new reality where his life is no longer his own. Stripped of privilege and resurrected as an undead pawn, Ludwig’s fight for survival will determine whether he reclaims his destiny—or becomes a mere footnote in a world of shadows and deceit.

Gabriel, a dominant omega, is caught up in a complex web of intrigue and danger at the royal court. After uncovering the truth about Olivier, a member of the royal family, and inciting a rebellion, he is marked by an unknown alpha. As the rebellion overthrows the old order, a new empire emerges, driven by a ruthless ruler whose rise Gabriel inadvertently enabled.Haunted by the weight of his actions, he flees from his family, his past, and the dangerous ties of the court. On the run, Gabriel must deal with shifting alliances, hidden enemies, and the growing power of the mysterious alpha whose mark he carries. As the empire's grip tightens and ghosts from his past resurface, he must decide whether to confront the forces threatening to engulf him—or risk losing himself completely in a world that regards him as either a pawn or a weapon.

Talented in Magecraft but useless in physical combat?

Can summon 10,000 Servants but can he defend the rear by himself?

I will say just one line in reply:

“That will not be a problem!”

This is the tale of a young man who obtained an enshrined miracle.

“As long as I have my familiars, I am undefeatable!”

- Description from Novelupdates