Evolution and Summoning Begin as a Wandering Spirit

Books About the Undead: Summoning Them or Being One Yourself

Please recommend something, guys!

The Protagonist Becomes an Entity of Horror and Spreads Fear

Summoning Generals, But Without Overpowered Stats

Ideally, the late Qin, Three Kingdoms, Sui, or Tang periods.

Wandering Spirits, Vengeful Ghosts, Ghostlings, Ghost Generals, Ghost Kings, Ghost Masters, Ghost Immortals, and Ghost Emperors

Undead-Summoning Army-Building Stories

I want the protagonist to start with an army of undead. Not a story where they can only summon a few undead at first, and then those undead are written as individually super powerful.

A Satisfying Troop-Building Story, Preferably With Undead Or Zerg

Good Completed Historical-Era Stories!!!

Looking for books like *The Little Educated Youth Who Transmigrated to the 1960s (Time Will Eventually Move On)*. I like heroines who are self-reliant and not saintly or always helping the poor, and who simply live a warm, peaceful life of their own.