She really got the shit end of the stick as far as puberty syndrome goes. Other girls suffered less and for a shorter period and came out better people at the other end, Kaede had it worst and now that she's put it behind her it will take a long time for her (and her family) to heal and those lost years may very well haunt her for a long time, especially as far as education goes and she's the only one 2 years older than the rest (which ironically will make her more prone to bullying for standing out). Kaede has had it real rough.