The Gates of Humanity is a fantasy-action RPG in the rings of hell.
The player can choose between two demon characters, Aamon & Lilith, as their fighters.

Both characters had their humanity stolen and were forced into hell as low-ranking demons to do slave work for the more powerful.
Now, looking for revenge, the two will challenge all high-ranking demons to absorb their abilities.
They will use these newfound abilities to defeat the ones who put them there, the High Seven(the demons for every deadly sin).