Air Master: Mina Nakanotani

Mina is one of Maki's first four friends and serves as a comedy relief character in the show.  She starts out quiet, clumsy, shy, and self conscious; and develops a crush on Maki.  But, as the series goes on she becomes more whiny and unbearably obnoxious.   I liked this show, and Mina wasn't bad in the first half, but between her in the second half and Renge throughout it had me wondering if it was worth it.  Those two are a case study on why it is important to not let your comedy relief get out of control.