Abyss of Souls

No system, no time travel, upgrade flow. The world is divided into heaven, earth and netherworld. In the heaven, there are priests who rule the world, in the earth, there are gods who protect all living beings, and in the underworld, there are gods of death who harvest lives. Different races, different cultures, strange species, and monsters. There is a cultivation system, and there is also a forgotten ancient technological civilization. The protagonist is a white-haired boy who has the ability to swallow the souls of the dead. And can obtain the talent, memory, and personality of the deceased from the devoured and fused soul. Every time after devouring the fused soul, one needs to avenge the deceased, otherwise the hatred of the deceased will be backfired.