Intellectual Cutie-Pie

Many months ago, I advanced to the point where the Sowed With Evil (nasty little flower girl Victoria) had some demons at level 25 to fight. I was nowhere near that level, so held off while I trained Moga up. Then there was the problem with the no-neighbors glitch which pretty much ruined the game for me, so it was many months before I revisited Monster Galaxy.

tl, dr: Is the Sowed With Evil quest going to wait until I have Moga ready to fight, or is it like those events which are available for a limited time only?