Daida

Daida (ダイダ) is the second prince of the Bosse Kingdom, son of King Bosse and Queen Hilling, younger brother of Prince Bojji.

Appearance
Daida is a young boy with short blond hair and sharp blue eyes. He wears a royal purple suit with black shoes and small golden crown.

Personality
Daida seems to harbor a deep-jealousy of Bojji, both for Bojji's position as the heir of the Bosse Kingdom, and because of the attention Bojji received when they were both younger.

However, it's difficult to gauge how many of Daida's thoughts & feelings are truly his own, and how many are a result of the influence of the Magic Mirror, which has been advising him in private for years. The mirror seems to be the source of most of Daida's overly-arrogant and destructive behaviors, while his more noble traits seem to be inherited from the people around him.

Daida has shown to have an honorable side, proved when he criticized Dormas for betraying his own student and supported Hilling's decision to make Daida the new king, calling him coward and weak.

Bebin in particular seems to have been a good influence on Prince Daida, teaching him to value his own strength and value his personal potential. This has enabled Daida to resist some of the worst influences of the magic mirror, though Daida still refuses to discard it.

In spite of the Magic Mirror's manipulation, Daida ultimately refused to drink the "strength potion" it concocted for him, saying he'd rather rely on his own strength than the sorcery of the Mirror. Unfortunately he was not given a choice in the matter, and was subsequently forced to consume the Mirror's potion.

Currently Daida's body is possessed by a reincarnated King Bosse, while Daida's soul is forced to wander a strange abyss apparently inside of his own body.

While trapped in his own body, Daida recalled a lesson taught to him by Bebin and Sorii. The two went into the prosperous Bosse Kingdom capital to show him that a king's role is to defend even the weakest subject, and help them live a good life. Daida comes to realize the wisdom in this, and regrets his past arrogance towards his older brother Bojji.

Swordsmanship
Daida is an extremely talented swordsman, and was able to defeat the captain of a mercenary company prior to the start of the series.

Half-Giant
Daida is a giant/human hybrid, and seems to have inherited at least some of his father's strength and stature. Whether or not Daida has inherited other giant traits remains to be seen he might have poison resistance.

Trivia

 * 's name likely comes from the Japanese word for "pitch-hitter" or "substitute batter" (代打, Daida).