So K, if I understand right, you're the vilain because you want to feel emotions ? I mean, no one is a vilain juste to be vilain. Because the day you achieve your goal of destruction, you'll just dissappear like others.
Leyak, if I understand well, you stand as juge and jury. Where is the justice in there ? What if (and I really mean it as an example, don't get mad) your father was abusive because his father was abusive ? Most people reproduce their parents scheme with their children. It's not an excuse but maybe something to consider before Killing them. Do you talk to them before ? Do you seek a reason to their behaviour ?
Mastema, I really like you. Do you have a crush ? (other than poison of course). Where did you learn your art ? Any fear ? Which side are you : vilain or good ?
Beleth, having a gun and bullets when it's the way you plan to kill yourself IS an emergency. I know humans aren't the Most tolerant creature but I bet if you'd look around really closelly, you'd find one ready to help you (wouldn't it be fun : a demon in therapy with a humain ?). What do you think there is after life ? But wait, can a demon die ?
I don't think you understand my motivations human. I just want to destroy in a repeated cycle that could take millions of years to accomplish. I have little to no concept of time, so I can wait indefinitely while I plan. After I have gotten enough satisfaction out of a galaxy I leave.
I do try to find the good in the kills that are under my control. For example, I won't kill anyone with children, despite how cruel they were to me. I also try to spare women, because I rarely meet women who are outright rude and cruel towards me. I made an oath before I started killing to never kill a child, even if they are evil incarnate. My father's death was out of self defense. He killed my mother, and then he tried to kill me, so I killed him as a result.
I am actually asexual/aromantic, as it turns out. I expressed a love for poisons ever since childhood, right after I nearly choked and died from a leaf of death nettle. I taught myself how to make poisons and medicine for a local criminal organization, and in exchange they would give me money to help pay my mother's hospital bills. I eventually joined up with this gang and began killing people for even more money. My only true fear is a plant called death nettle. Death nettle is very similar to poison ivy/oak in terms of symptoms, except very lethal. Just thinking about that plant makes me shudder. I would have to say I'm on the good side, despite being a demon.
I don't think there is an afterlife, I just think we reincarnate as something new. I believe that we live our lives, die, and reincarnate in a completely different part of the universe. Yes demons can die, but their aging process is slowed down, so they can live for around 10,000 years. Most demons either die from suicide or an accident though.