Thanks for your comment! I love reading messages like yours; they're not very common, so they're definitely appreciated. Regarding the dark personality of the protagonist, it's intentional. My aim isn't to create a hollow character, but rather one with depth who can make decisions for or against themselves. In the end, it all boils down to what benefits them and what doesn't, what they desire, and what they'd rather avoid.
Let's focus solely on what you've seen in this build. The MC is impulsive, egocentric, apathetic, ambitious, proud, smart or clever, but depending on the situation, he can be very stupid, quick to act before thinking, also that he is a liar. (None of his traits are in a good way) They're driven by their impulses, and that's the essence of the karma system: impulses. You could say that he is an imperfect character, and that is how he was designed.