I've recently returned to KO and I've found that 0-69 can be done in 4 short sittings just following the exp quests, but I guess this trend doesn't follow all the way through the 83, and I was kind of curious about the length of time required before my move my char beyond the RLB.
What level can you quickly quest up to? And from that point, how long would it take to get to 83?
I guess what I'm really asking is, how long from level 70 to 80? And how long from 80 to 83? (Saying, on average, putting in a good 5-6 hour grind a day)