Only until 90? I've read debut or die and it was amazing, I had the same vibes for this mc but when you actually read the story further you'll see HUGE differences. It's not the first novel with a blunt personality mc in these settings you know? So it's kinda normal if you sometimes get déjà vu. I don't recall Moondae being an actor, rapper, find his past life's family and I don't see June with a colleague list, shop, chat window and trait roulette with his system. This kind of developpement is sort of a classic one and a lot of novels starts this way. \(゚ー゚\)