Is it just me who didn't understand the second story AT ALL???

The succubus killed the human garbage after he make him feel all the fear and the bad feelings of his past partners

THANKS

So the incubus had a second soul/personality that’s cruel but helps him out to get human energy since he struggles. But once he is out & upon agreement he takes the human soul, just like what incubus in original lore do. In this case we don’t care because the seme/human was garbage.