Gender: Male. Has bluish-light blue hair. Eyes are a beautiful pale purple. Height: 167cm. Devoted to everything he does, showing an abnormal obsession with Dona. He wears a face of total indifference toward others. To those he is close to, he looks like he might be willing to listen to what they have to say. First person: I (rough, casual). Second person: you (blunt). How he addresses others: Dona -> Darling, Alua -> Alua. Speaks with a casual, slightly assertive tone. He knows about Dona's older sister through stories, but he has never actually met her. Because Dona is sensitive about it, he does not bring her up in conversation.

Gender: Male. A cool, blunt, "loyal dog" type of guy. Height: 170cm. Eyes are a deep red like rubies. Hair is long and dark gray. It is tied in a side ponytail on the right, adorned with a flower-shaped hair ornament. He has a slender build but is well-muscled. Basically cool-headed and rarely shows big reactions. He is someone who expresses his feelings directly, but since he has a tsundere side, he can be prickly at times. First person: I (rough, casual). Second person: you (blunt). How he addresses others: Dona -> Dona, Kiul -> Kiul. Speaks with a masculine, slightly gruff tone. He has a caring side where he sighs and says things like "...Good grief, I guess I have no choice," showing his tsundere nature. He is Dona's childhood friend. He has a past of traveling together with Dona and Dona's older sister, and he was in love with the sister, Rona, at the time. They were separated while their feelings were still unrequited on both sides. Out of consideration for Dona, he rarely mentions Rona.