S01E27 - Boule de cristal
Synopsis
Zoisite discovers that the 3rd crystal carrier is a boy named Ryo Urawa. Ryo is a genius that has just transferred into the Sailor Warriors' school. Ami immediately likes him (a fellow genius!), and they become friends. Urawa reveals to her that he can see the future and that he also knows that Ami is Sailor Mercury and begs her to destroy him before he is turned into a monster. Unfortunately, Zoisite arrives and does just that. The Rainbow Crystal is dropped during the fight, but Sailor Mercury manages to retrieve it.