Sailor Mercury was the next to join up. In the manga, Mizuno Ami's name was brought up because she always scored first on tests. However, in the anime, she transferred in from another school. In the manga, she received her henshin stick/transformation pen from the Sailor V video game as a prize for scoring well. At the same time, Usagi receives her disguise pen. But in the anime, Usagi has already received her disguise pen before she ever meets up with Ami. And in addition to that, Ami does not receive her own henshin stick until after she's attacked by a monster. Then, Luna slides it across the floor with instructions on how to use it, and Ami quickly becomes Sailor Mercury and possesses full knowledge of how to use her powers.