First of all, MC was stoping ML to start a tragedy (war). MC was send to that world to fulfill Chloe's wish to save ML. If ML killed one of the high ranking noble without reason, the nobility will use it to bring down ML the emperor. Second ML also wanted to kill ogFL before MC stop him because it would result is war between 2 kingdom since ogFL is a princess. On the original story the nobility and another kingdom work together to end the notorious emperor who kill people without reason.

So instead of direct killing. MC soul who could go out of the doll was invisible to others except ML. Was following the enemy, evesdroping and collect evidence so ML could charge them then they would have a reason to kill a criminal and Duke Otien will little by little lose its strength.

maybe somewhat possessive/extremely protective, but she is literally made of porcelain and only he can see her at the time he acts that way. Additionally, his own sister was mu*dered. Later on he just doesn't want men touching her too intimately, but she is the same way towards him. His level of possessiveness isn't very toxic, it's not so much forbidding her from doing stuff as it is forbidding other men from requesting petty favors like handwritten notes and private dances. It's more childish than threatening and I suspect he'd back down quickly if she insisted. There is no paranoia about her cheating, she is actually more insecure than him. However, her insecurity isn't extreme and is easiy assuaged. Neither is overly pushy or exhibiting unhealthy levels of jealousy.

he is more depressed than truly psychotic. He is self destructive and has little reason to live but part of him doesn't want to give his enemies the satisfaction of dying. They are constantly trying to kill him and his initial reason for being in a war was that they forced him to fight. After his sister was mu*dered and he couldn't do anything about it he did indeed rampage. However, he genuinely grows throughout the story as he gets over the depression/mental breakdown.

She's definitely a bit too selfish in some ways to fit that definition. She also isn't always honest. Maybe it's because she ends up being a saint type character that this might be thought. However, a white Lotus is extremely unlikely to just let villains get their comeuppance. She doesn't heal people she hates even though she easily could. As for her background, she'd just enrolled in college. She may not have even chosen a career yet. I think she's most likely 19 years old, but she could be 18. Since she never attended classes, her major wouldn't define her much. This is from chapters 1 and 78.

the author pretty much paraphrases Genesis and gives the angel character what I think is a psuedo hebrew name. It's hard to tell when it's not originally English. It's not precisely Christian/Jewish fiction, but it's pretty close

FL is finally human since she chose not to come back to korea

them trying to find a way to make our FL human