Jida

Jida is the leader of the Dragon Slayer sub-faction of the Harmony Faction.

Appearance
Jida is a three-headed dragon whose three heads are capable of exchanging control over their shared body. The three heads also assume different human forms.

The default form is that of a tall middle-aged man with a calm demeanor, and is the form that walks down the aisle with Elma during their wedding. The second form, which is the first to appear in the manga, has a much scarier demeanor meant to signify his leadership of the Dragon Slayers, The final form is that of a shorter middle-aged woman.

Personality
The main Jida form possesses a calm and polite demeanour. The Jii form has more of an aggressive and scary personality, and is more willing to fight anybody that gets on his way.

The Mother form, who is more of the main personality, even than Jida himself, possesses more serious and wiser attitude.