I don’t remember much about this novel, i think it’s a quick transmigration?? if not then it’s just a transmigration story. it’s a cultivation arc, the MC was raised by ML who killed his whole family, but the ML hid that fact from him. however if i’m not mistaken the MC was well aware of everything because he has a system and a mission. then something happened (ML had to fight with another ML) so the MC destroyed himself using a technique to save ML. ML froze MC’s body after his death~ then MC woke up in a ice beast spirit (?) body and was raised by ML’s enemy. please help TT sorry if the description is shit i have a goldfish memory and i fear that i might have mixed several novels together but i hope not!
https://www.novelupdates.com/series/need-to-propose-to-seven-men-what-to-do/ The MC becomes an ice spirit beast and one of the ml killed the original character's family. There is also a system.