Kono Dolom was born in the royal family’s household, and raised as a servant. He happened to be carrying baggage for Shizuka while she was on a scouting mission, and she went into labor in the middle of nowhere. Kono Dolom helped her give birth, and got Mizu breathing—she was born with her umbilical cord wrapped around her throat. While Shizuka completed her mission, Kono cared for Mizu, and upon their return to the palace it was decided that he would continue to do so.
Kono essentially raised Mizu, since her mother was constantly on assassination assignments from the King and her father had little interest in her. The fact that Mizu was constantly getting sick didn’t help. When the rebel attack took place, Kono didn’t participate, instead treating the wounds of the combatants. Returning to the room a very sick Mizu had been quarantined in, Kono found it empty. He eventually found Mizu safe, but feverish and traumatized by the bloodshed she’d witnessed. She was clutching the Scarab Amulet, which he hastily concealed and kept.
As Kono helped her recover, he overheard a rumor that Mizu had lost her mind. Kono realized the protection that lie would give them, and had Mizu pretend to be crazy even after she’d recovered. When he asked the rebels if he could continue caring for Mizu, they gave him permission, and sent them to live in an isolated summer home that used to belong to the royal family. There Kono raised Mizu in seclusion, training her in combat and the use of the stolen battle suit.
Kono Dolom is suspicious and generally crotchety, partly because he wants to be, partly to give the impression that he's a harmless, grumpy old man. He doesn’t resist being ordered around, just mutters and complains under his breath.
His once-black fur is going grey with age, blurring with the three white stripes down his back. He is tall and lean, with chipped claws, and has a bit of a back problem--he hunches too much and now he can't fully straighten his neck.