Rosario Vampire, Volume 2 (Rosario Vampire Vol. 2 #5-8)

The bandit leader copies Tsukune's form and tries to impersonate him to fool his rescuers, but discovers they are all girls. As a doppelgänger, he copies Kurumu's abilities and fights them off until Tsukune unleashes his ghoul ability. As Ruby Tojo and Yukari quickly seal Tsukune's powers, the doppelgänger assumes Moka's inner form, but is no match for the real Moka.

The News Club try to attract new members in the midst of club recruiting season. With Yukari's help, Koko tries out for different clubs, but is physically too little to be taken seriously. Yukari gives Koko a Gro-Gro Drop that turns her to adult size where she is able to show off against the Karate Club; however, the effects are brief and she reverts to a little kid. The other News Club girls come to her rescue by transforming themselves in the same manner.