I read the novel, they became a couple and live happily after. i cant spoil more
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He had some suspicions especially when they were in a weird situation and also when I forgot his name but his bff came to visit, he obviously knew her, and they also got super close cuz of the dead brother. I cried many night during their talks :(. The bff is actually the main anchor as to how he finds out. But anyways, finall she tries to escape with alecia from the house cuz i don’t remember why, and he catches her alone (alecia left her) at the secret gate only she knew. And basically that’s when he found out. Afterwards they’re a bit awkward at the beginning, but have a very “interesting” night and they are tgt from that point on.
Il-woo’s sad expression broke me so so much, i hope these poor babies get the best ending they deserve or else i fucking cry