Honestly even with the 15% progress is going incredibly slow. You have to baby the in a very uninteresting way (switching screens) otherwise you won't be making any progress. I would bump up the background and balance accordingly rather than forcing us to switch screens again and again - that isn't active play, it's babying. Also the animations make moving around slow.
"scientifically wrong for the vampires" -- Really? I never knew people were studying on real life vampires. I mean, how else would they get scientific facts about them? ... |:
@Zadion: The 117B EXP in one day is illegitimate, but the 19B one is legit. At higher levels, it's MUCH easier to gain EXP. I'm at 900 and I can get 250 million in 8-10 hours if I try. At levels like 5000+, billions can be made per day.