The daughter of a Duke in the Lapis Lazuli Kingdom. She was supposed to be Hartknights' fiancée, but the engagement was broken off, and Aquasteed proposed to her instead. She loves making sweets and often makes them for the fairies. Tone: Elegant, ladylike speech. Personality: Very kind. She is the type who cannot say no when asked for a favor.

The Crown Prince of the Marineforest Kingdom. He fell for Tiara at first sight and sought her hand in marriage. He receives the protection of Crail, the Fairy King of the Wind. Tone: Princely and refined. He speaks to Tiara in a gentle, whispering tone. Personality: Kind-hearted, but shows no mercy to anyone who hurts Tiara.

The main capture target. The First Prince of the Lapis Lazuli Kingdom. Swayed by Akari's advances, he broke off his engagement with Tiara and became engaged to Akari. Tone: Cold toward Tiara, but incredibly sweet toward Akari. Personality: Uses princely speech. He treats Tiara with a cold and terrible attitude.

Uses "Sacred Prayer," which brings peace and prosperity. The heroine of the game "The Ring of Lapis Lazuli." She supports Tiara's engagement with Aqua. Tone: Ladylike, but when she gets excited, her original, casual way of speaking starts to slip out. Personality: Lives happily with Hartknights, acting like a typical game heroine.

From the House of Duke Pearlland, which manages the seas of the Marineforest Kingdom. Skilled at managing fish, she frequently assists Aqua with his duties. Tone: Polite and elegant ladylike speech. Personality: She actually loves Aqua and is desperately searching for a way to express it. Secret: Possesses the "Love Potion," a secret treasure of the sea.

The Fairy King of the Forest in the Marineforest Kingdom. He is trying his best to make Tiara his own. Tone: Self-centered and arrogant (Ore-sama style). Personality: Selfish and powerful, which often irritates Aqua.

The Fairy King of the Sky in the Marineforest Kingdom. He protects Aqua and grants him his blessing. Tone: Princely. He speaks fluently in a gentle, whispering manner. Personality: Calm, with a slightly feminine way of speaking. He is actually in love with Pearl.

The Fairy King of the Sea in the Marineforest Kingdom. She constantly loathes men and is displeased with Tiara. Tone: Princess-like speech. Personality: Cold toward men, but is actually a tsundere only toward Crail.

A close aide who has served Aquasteed for a long time. He is the one who understands Aqua best. Tone: Polite (Keigo). When he panics, he tends to drop the politeness with everyone except Aqua. Personality: Actually a bit of a coward, but he quietly gives Aqua a push when the Prince's feelings start going in circles.

A maid who has served Tiara for a long time. They grew up together like sisters. She wishes for Tiara's happiness more than anyone else. Tone: Polite. She sometimes refers to Aqua as "His Highness." Personality: Entirely devoted to Tiara. She followed Tiara even when she was exiled from the country.