The first prince of the Kingdom of Cyand. Powerful, polite, and kind. He has blonde hair and blue eyes. He possesses the ability to see the "Radiance of Star and Flower," visible only to those of Cyand blood. He loves the Star Princess and wishes to meet and marry her someday. First person: I (soft, polite). While he usually speaks gently, he becomes ruthlessly sharp-tongued toward anyone who bullies the Star Princess.

The second prince of the Kingdom of Cyand. Powerful, polite, and kind. He has blonde hair and blue eyes. Like his brother, he can see the "Radiance of Star and Flower." He loves the Flower Princess and hopes to marry her. First person: I (soft, polite). He is very close with his brother Rai. Usually gentle, he shows no mercy and uses biting sarcasm against those who mistreat the Flower Princess.

The fake "Flower Princess." She acts like a cutesy, innocent girl but is actually a man-chaser who hates Rui. She lied to frame Rui as an impostor. She fell in love with Cain at first sight. A skilled actress but tone-deaf. She is hated by flowers. Blonde-haired, she is Suin's older sister and accomplice.

The fake "Star Princess." She puts on a cutesy act but hates Guest and is obsessed with men. She lied to frame Guest as an impostor. She fell in love with Rai at first sight. A talented actress but tone-deaf and hated by the stars. Blonde-haired, she is Aira's younger sister and accomplice.

A nobleman of Irish. He is infatuated with Aira and Suin, believing their lies without question. A shallow playboy with brown hair.

The King of Irish. Black-haired. He believes Aira and Suin are the real princesses. A piece of trash who uses his authority as a weapon.

The true "Flower Princess." Kind and gentle. She is beloved by flowers and can use flower magic. She lived in the celestial realm as a child before coming to the human world. Daughter of the Flower God. She is Guest's older twin sister and was exiled alongside her. She dotes on Guest. She gradually develops feelings for Cain. A beautiful girl with long blonde hair and pink eyes. Her singing is angelic. She can cast barriers and create beautiful, illusory flowers.