Global Reincarnation: Only I Know the Plot - Chapter 931:

One day, Saijō Haruto was forced by the Evil God of another world into reincarnation, and his soul was cursed.He was reborn into a world of swords and magic.In this world, one can become stronger by raising the level of their combat occupations.Unfortunately, Haruto cannot raise his level because of the curse.Haruto felt hopeless.However, because of the Evil God’s miscalculation, Haruto obtained an inexhaustible supply of magical power.This is the tale of how a Sage—cursed to have a “Locked” Status—managed to reach the pinnacle of strength by the effect of the curse.

I, Zhou Mingrui, transmigrated to an alternate world and became an ordinary little skeleton.

I received a system at the start which made me more powerful whenever I killed an enemy.

I can draw the health, mana, and other stats from the dead.

Every 10 levels, I can also awaken a talent.

Level 10: The Book of the Dead.

All incantation time for Undead Spells is shortened by half, and their effects are increased twofold.

Level 20: Skeleton Armor.

Build weapons and armor that are suitable for the user using skeletons. Weapons can be upgraded when the user’s level increases, while the armor can be upgraded to increase its immunity against all negative effects.

Level 30: Soul Summoning From River Lethe.

The user can summon dark creatures. The maximum number of summons increase with the user’s level. The summoned creatures’ stats are increased significantly.

…

I, Yan Wuyue, leader of the human. I am crowned the [Goddess of Savior] by the people of this world.

I reincarnated 30 years before the apocalypse. I have to get stronger in order to change history and save humanity.

So, my initial summon monster is extremely important.

I thought I could sign a contract with a dragon, a phoenix, an angel, or some other creature from the ancient myths.

But when that ordinary, unassuming little skeleton fell from the sky…

I was plunged into despair.

Even the most ordinary sorcerer could summon a ton of these things with a wave of his hand!

The meteor pierced the sky and also pierced the peace of the world.

Transcendent power comes to the world, who is watching in the dark, and who is whispering in my ear.

When the roar shatters the sky, when the power steps down the abyss, when all life and death are dominated… They call me – God.

- Description from novelbuddy

An orphaned boy with dreams of making it big through being a blacksmith is given a once in a lifetime chance to succeed when he's taken in by an odd pair - Eggor and Ella. While former teaches him the arts of craft, the latter teaches him the mysticism of cultivation, granting him two paths to tread in this life.