playing on nutaku server :
starting the even between 4k2 and 4k3 free kobans
had 15 EP in order to prepare that girl
almost never wasted free EP
you can have one EP every 30 min, 24 hours perday so 48 EP per day so 4*48= 192 fights during
won 2 EP in missions almost every day
get 25 free kobans every day from daily missions (so 100 kobans more)

I'm actually at 2335 kobans so I have spent something like 2k free kobans to get her just now and that's why I am writting.
a full EP bar cost 36 kobans (free kobans or not)
here comes the maths time : 2000/36 55,55555555
55*20: 1100 fight + 15 of prepare + gonna say 150 of the 192 free ones (in order to be large no body can have the 192 atm)+ the free ones
so I'm probably around 1300 fights
#NeverGiveUp