Episode 51 - Perfect Idol Elza

Perfect Idol Elza (パーフェクトアイドル　エルザ) is the fifty-first episode of the Aikatsu Stars! Anime Series and the first episode of its second season. It aired on April 6th, 2017.

Summary
At the harbor of the glittering town, a sudden appearance of a cruise ship arrives. And that cruise ship is the idol school, Venus Ark. The top idol and owner of the school, Elza Forte, steals the attention of Yume Nijino with the beauty of her Star Premium Dress!

Characters

 * Yume Nijino
 * Laura Sakuraba
 * Mahiru Kasumi
 * Ako Saotome
 * Yuzu Nikaidō
 * Lilie Shirogane
 * Elza Forte
 * Rei Kizaki
 * Hime Shiratori
 * Hikaru Moroboshi
 * Anna Hibiki
 * Kirara Hanazono

Trivia

 * A special advanced screening of this episode was shown on March 30, following the airing of Episode 50.
 * Elza and Rei make their official debut in this episode.
 * Kirara makes a cameo appearance in this episode.
 * This episode marks the official announcement of the brands Berry Parfait and FuwaFuwa Dream.
 * Forever Dream makes its debut as an insert song in this episode.
 * This is the only Aikatsu Stars song to debut in the Anime before appearing on any other Media.
 * The Blooming Queen Coord makes its debut in this episode.
 * The Ruby Pitch Black Coord and Cutwork Coord makes a cameo appearance in this episode.
 * STARDOM! and Bon Bon Voyage! make their debut as the new opening and ending themes.
 * The Aikatsu! Style magazine shown in the episode is also available in real life.
 * Unlike all past eyecatches, where both cards are of the same person in school uniform and school coord, the eyecatches now are both in school coords, but of different people.
 * The fitting room music changes.
 * The ending card now returns to a similar format like that of the Aikatsu! Aphorism, with a horizontal layout and chibi characters off to the side.
 * This episode premiered on Sakura Kitaōji's birthday from the original Aikatsu! series.