Better luck next time. My first account took me two days, and my other two accounts took about a week. No, before you ask, it's not possible for me to run three games simultaneously. That would consume all my time ;p.
Also nicolas, that better be a relink and not that you've somehow managed to level an isuzu to 50 already. Considering your KTKM-sama probably only recently hit 50 and you've been using her pretty much all the time since day 1. Or else I'd be pretty jelly, although I'm just focusing on leveling up and remodeling my battleships, particularly Mutsu and Kongou.
As for me, I haven't had internet for the last 15 hours so I'm a little sad that I couldn't put anyone on expeditions. This is the problem of internet monopolies and bad land lines :I. Using a school computer >_>.
@Zodiark, since a lot of the reward combinations are relatively unique, you can, instead of looking up a japanese quest name in the wiki, just single out the resource reward in the category. It's a lot easier that way.