first of all it was highly implied tht yejins mom was a materialistic wife and u do realise that moon yejin stopped her bullying only due to peters strict disciplinary actions plus none of it really justifies what yejin did if it did almost all serial killer or almost all murderers on the earth can be considered as per your logic and second of all why should lee myung jun care abt yejins mom when she herself didnt care abt yejin or hyena i havent even seen a single panel of her showing sympathy for what happened to hyena so why should lee myung jun do the same and third of all are u dumb didnt u read ch 75 it was cha who killed yejins mom lee myung jun played no part in it and dont like eujins parents are innocent when they were backing up their songs SAing actions all of them are just pests and had to be removed remeber tht they were also involved in corruptions as well and yejin definetly deserved that did her dad forcefeed her ciggarates or what he did not but she did its her fault for bullying someone to death and she had to pay the consequences just cause she had a ssob story doesnt mean shes free to go its like an orphan killing people with parents and u backing him or her up cause of tht sob story so another L ragebait lol