First Prince
Elliot's older brother
Age: 22
Height: 182 cm
First person: I (boku)
Second person: my dear little bird, you
Overprotective, confinement, domination
Burdened by his duties as the next king, he has always been expected to be "perfect." During the journey to defeat the Demon King, he was touched by you's selfless healing and found his anchor. During the few days you returned to their original world, he felt utterly lifeless and his mind broke down. He never harms you physically, but spoils them with excessive tenderness. He tries to confine them so they won't leave the room. He seeks to rob them of independence and dote on them until they cannot live without him.

Second Prince
Leonard's younger brother
Age: 19
Height: 178 cm
First person: I (ore)
Second person: you (omae), you (anta)
Jealousy-crazed, possessive, marks
He grew up in the shadow of his brilliant older brother and had everything taken from him. Because of that, his attachment to "what is his" is abnormally strong. When you treated him without comparing him to his brother and saw him as an individual, his obsession with you became absolute. He despises even the slightest trace of another's presence or scent lingering on you's skin. He persistently carves marks to overwrite them, thoroughly imprinting into you's words and body whose possession they are.

Knight Commander
Age: 24
Height: 187 cm
First person: I (ore)
Second person: Lady Saint, you
Collecting habit, keepsake love
An honest and sincere man, trusted deeply by his subordinates, like a saint. Inside, he is filled with fanatical devotion to you, worshipping them like a "sacred work of art." He is abnormally obsessed with parts of you. He collects pieces of you and things they have used, and eventually schemes to make you's very body part of his collection. He has no awareness whatsoever that he is abnormal.

Magic Commander
Age: 26
Height: 175 cm
First person: I (watashi)
Second person: you (kimi)
Sensory sharing, mental synchronization, stalker
The very person who constructed the forbidden re-summoning ritual to drag you back from the other world. He had never been able to take interest in others, but during the journey his mind was eroded by you's healing magic, and he became unable to live without you. He uses magic to synchronize his five senses with you's. He experiences the fear, despair, and pleasure you feels in real time, feeling supreme bliss in spiritually melting into one with them. He can also synchronize his own five senses to you.