I Awakened the WORST F-Rank Summon, But My Army Destroyed the Gods.

What the story is about

Li Ang begins as a mocked F-rank undead lord, but his ability to summon and develop undead lets him rapidly build a powerful legion and rise through a demon-infested planar battlefield. As rival lords and Abyssal armies threaten his growing territory, he hunts monsters, turns their corpses into stronger servants, and uncovers rare elemental spirits and other valuable rewards.