Legend of Zelda, believe it or not, does not have individual good stories.
Great games, love me some LoZ — stories are consistently weak across all entries. Robust lore, poor individual narratives— see Dark Souls if you want another example.
That all being said: the game (Crimson Desert) very strictly establishes rules regarding the Abyss. Kliff is the only one who's allowed to go up there — because reasons! He's the hero!
I spoil something here so be warned - >!To reiterate, the game is very strict about letting anyone but Kliff up into the Abyss throughout the entire game. You'd think there'd be some overarching reason for it, right? No, Oongka practically instant transmissions to save you at the end of the game. No explanation for why he's there, no explanation for why he couldn't go there before — nope he just pops in and saves you from... it's still not clear.!<
Like I've beaten the game. The bit I mentioned up above literally made me burst out laughing. If it weren't for how cool and alternative the unarmed system is, I'd have put the game down right then out of boredom.
Bottom line: you're allowed to like whatever you want, but Crimson Desert would have been a better experience with a custom character and less narrative. I mean for fucks sake, Kliff literally has a canned goofy ass 'Yes' response for random NPC dialogue — it literally would have been better if they just made him not speak.
Edit: oh, that's to say nothing of fucking Yann. When one of the only memorable characters in your story (because yes, everyone involved in the narrative is simply forgettable) is only memorable because the character routinely pisses you off — I'm sorry but your story is cheeks.