Caserin and Luverin

Caserin (Japanese: カスリン Caserine) and Luverin (Japanese: ラブリン Loverine) are two that belong to  and her oldest sister,, respectively. They acquired them in the Kanto region, despite the fact that Luvdisc do not normally live in the area.

History
In Luvdisc is a Many Splendored Thing!, it was revealed that and  had both obtained Luvdisc of opposite genders, in the hope of using them in one of the Cerulean City Gym's water ballets. Caserin was in love with Luverin, but Luverin completely ignored Caserin's advances.

Meanwhile, Dr. Namba had concocted an evil scheme to rid the world of love and needed the two Luvdisc as his key components. To his aide, Butch and Cassidy were asked to steal the Luvdisc (in the original Japanese version, Dr. Namba only wanted them for his "R-project", not mentioning anything about ridding the world of love at all). His plans were ruined, however, when Caserin and Luverin were able to cooperate and save each other. Seeing Caserin's heroic acts, Luverin fell in love with him. Their mutual attraction finally allowed Daisy to complete her new show.

Personality and characteristics
Caserin was shown to be lovesick and easily saddened when Luverin would deny him. However, with Misty's encouragement, Caserin was able to save both himself and Luverin, causing the latter to fall in love with him.

Trivia

 * Caserin was Misty's first Generation III Pokémon.
 * Caserin is the only one of Misty's Pokémon that never appeared in the main series.
 * Caserin is also Misty's only Pokémon to have a confirmed gender.
 * Caserin and Luverin's names are a play on both the name Catherine and the two syllables of Lovecus, the Japanese name of Luvdisc. Caserin also contains a part of Misty's Japanese name, カス Kasu.
 * Along with Growlie and Snowy, Caserin is the only Pokémon owned by a main character that was ever nicknamed.

Related articles
Mistys Liebiskus Caserin Lovdisc d'Ondine Caserin e Luverin カスリン 卡斯林与爱琳