Сайонджі Каната

Kanata has brown hair and brown eyes. To others, he appears as a cool and handsome person. He excels in most subjects, is athletic, and talented, making girls admire him. But in the house, he's lazy and doesn't have proper manners since he's lived with his father for so long. Miyu is the one who sees Kanata's imperfections and points them out, but he tends to ignore whatever she says.

Kanata is an easygoing person who does not like to talk very much, unlike Miyu. Although he seems quiet and a bit cold, Kanata is a loving, caring person.

Kanata and Miyu have difficulty keeping the fact they're living together a secret, so they use the story that they're cousins as a cover. Kanata learns from Miyu's mother that they were childhood friends.

Kanata's favorite food is pumpkin in all its varieties: boiled, squashed, or fried as chips. In "The Blackout Halloween", it is revealed that Kanata had liked pumpkin since he was a baby after his late mother fed it to him for the first time.

Ruu calls Kanata "Papa" since he looks similar to his real father.

Kanata begins to like Miyu more and more, coming to love her as the story progresses, but teases her to mask it. Initially, he refuses to express his true feelings for others. He was also often jealous of Seiya Yaboshi in episode 12, where he was mad at and worried about Miyu. He reveals his attraction to Miyu in episode 55 of the anime (not to Miyu).

In the manga, after Ruu and Wannya return home to Planet Otto, Kanata confesses his love to Miyu and kisses her. Years later, he succeeds his father as the resident priest of Saionji and is married to Miyu. Their daughter, Miu, meets Ruu when she is 12 years old; the story is continued in Shin Daa! Daa! Daa!.

(Source: Daa! Daa! Daa! Wiki (edited), Wikipedia (edited))