When you transcend, get to 70/1 on 2nd job and instead of talking to her again to get 99, grind elsewhere until job 21. Then you return to her and get 99/70.
updating: I got to job 70 using the free bm you get from eden npc, VIP exp bonus and donating 50% base exp to a guild. I thought that each job exp tick was large enough to give the most exp possible. Anyway, besides VIP exp bonus, the other two modifiers (not sure if the guild one really matters) are easily obtainable ingame.
as someone said, when you reborn, get job lvl 10 as novice, change to 1st job, then talk to janeway until you get to lvl 70, change to 2nd job, get to job lvl 21 and return to janeway. probably using only the free BM does the job to get you to lvl 70.
Edited by gnog, 25 January 2019 - 06:33 PM.