Greatest Ability Looting System

A glitch? anomaly? a gift? a result of gacha game addiction? or last hope? Jacob Faust had finally received his system, but rather than living life as a normal dweller of the city, he found himself with a unique form of power, becoming a glitch of the system. The ability to steal and use the abilities of others for himself.
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Unbound by the light that shone on his city, instead by something else entire that promised to help accomplish his dreams, from wealth to vengeance for the ones who killed his family and friends in the war. But he isn't the only one born with this power, can he survive against them?

SETTING SYNOPSIS
Humanity had reached their peak centuries ago, creating the universal system for all to use, but their celebration was cut short as the beams of light broke through the earth and wiped out nearly all of humanity, leaving the survivors cursed and bound to the light, turning their gift of systems into a curse as the light controlled it fully.
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As time went on, wars erupted for power and territory. But a miracle happened, people unbound by the light were born, but bound by something else, one that promises great strength and wealth.