Spoilers ahead for those who don't wanna know:
From what I remember, it takes him a while to get out after getting kidnapped. He gets repeatedly drugged and keeps forgetting things, and once he regains some consciousness, his way to escaping the building itself was a lot more tense as there were some guards and he was spotted trying to escape, etc. but here they just skipped past all of that. When he runs from the building (he's like being chased cuz he jumped out of the building window, he gets quite hurt and bruised heavily, and, if my memory didn't fail me, i think he banged his head as well, and like he gets scuffled by the trees, and he ends up getting amnesia from all that trauma. It was just way more intense and they just breezed completely over that in the manhwa for some weird reason

They skipped a lot of interesting parts of the novel..
Like why???