
so you guys remember the elderly couple at the farm where mongryong had to clean up cow shit? so they had a son who jeha liked a lot when he was young but he died by "drowning" bc they found his shoe at a pond and disappeared or something like that. if you look at the picture they have of him he weirdly looks like mongryoung when he was young with the same hair and eyes... and mongryoung's whole childhood is just rlly sus like how he has no trace of his parents, his "sister" just found him as a baby and stayed with him until they were rescued by the temple monks...

SPOILER, SO BE WARNED
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Based on the novel actually,
Mongryong and his sister has traumatic past. His sister (we say halfsister) has been physically abused by Mongryong's mother. Because of her past, she cannot speak. Also, she lies to tell truth out of trauma and fear. In fact, his mother is a fucking slut (so his 'father' is kind of questionable). Also, Mongryong becomes rebelious when his mofo mother commands him to steal the money collection in his class where he was arrested. The past reveals by his sister when Jeha visits the temple where Mongryong grows up in his childhood.
At that time, Mongryong secretly leaves the temple to avenge Jeha's father. And by the way, Mongryong's revenge is very humiliating, funny, and outrageous revenge....
i just wish yeonwoo eternal happiness