Thread:WhiteSamurai/@comment-25991320-20150116143742/@comment-70.161.233.200-20150116153321

In one of the chapters where she was first introduced (somewhere in chapters 96-100), Rou estimates that Tomboy princess is 10-12 years old and will be very beautiful when she grows up. The hero may actually around the age you mentioned, as he may have some special job that allows him to have better stats/skills. Reading Day 97/98 where he was introduced might shed some light on his age.

-Godjinrai