Karma Collector

Karma Collector is an action combat game in which you play as a newly appointed Reaper, tasked with collecting karma. You fight enemies to earn experience points; earning enough raises your rank and increases attributes such as attack power.

The Reapers

Reapers collect karma, and those who gather a certain amount are appointed to a secretive organization. The main character has just become able to collect karma. He carries out his duties professionally but is somewhat cold toward the people he works with.

Karma

Karma makes humans aggressive. When collected, it loses its body and mind and disappears completely. People who possess karma become physically stronger, and all have committed some kind of sin in the past, though the amount of karma they possess is unrelated to the severity of that sin. What karma is and how it is apportioned remain unclear; if left unchecked, it will bring about the end of humanity and the world.