It's either One is the son of Ellie or he is Ellie coz he might have taken the same drug like Humpty Dumpty (lmao his name tho), the drug that doesnt make you old or something...
I feel like Min Woo Jin (forgive me if i got the name wrong) hates the MC because he can see his little self in him--someone who doesnt fight back and just let themselves get beaten...
That's soooooo cuute (♡˙︶˙♡)