1. Lighthalzen Biolabs (or Rachel Sanctuary tbh)
Was a young dumbass back then, so I was feeling sad and (mostly) scared at the same time while doing the Biolabs quest and exploring lhz_dun. You can't even see the ghosts themselves and I still got terrified lmao, didn't help that I was solo 99% of the time
RO is filled with pretty good storytelling on a lot of its "world quests" which is sadly somewhat overlooked by people spamming space, y'know?
2. Super Novice sucks
I'll always remember how deserted the SN job change NPC is 🥶 I demand justice
3. Magmarings
So I had my fair share of official renewal, and I remember reaching max base on GX through magmarings in veins. I farmed it for so, so, SO much that it literally haunted me in my dreams - literally. I used to hallucinate about killing magmarings and the game's camera (all in my head) would zoom in so much on them I'd become dizzy. It was almost the exact same feeling as sleeping after a hefty meal; I wake up in the middle of the night and become unreasonably scared of nothing, I can't go back to sleep, and I'm seeing creepy shit in the corner of my eye
Needless to say I had to take a break from the game