Imari is a hunter-class special guardian of the Castle in Parallel Paradise. She is one of the few characters in the manga that wears glasses and carries a firearm. However, said firearm is a signal pistol and that her actual weapon is duel sickles.

Imari was sent by Kokubo to find Youta Tada and traitors. She talked with Innkeepers and notice trio strange guests, which were Lumi, Youta Tada and Leigh-Mary. Leigh-Mary stated that two other humans are her servants, but Imari manages to recognize Lumi. As she knew that Lumi is fugitive and traveled with Youta, she easily understands, that the other "girl" isn't girl, but the man, Youta. After that, Imari climbed to the roof, ambushed Youta and invaded into his room, armed with the Signal Pistol. She managed to alarm the castle guardians by the fire of this pistol, but, right after that, Imari was defeated by Lumi and Leigh-Mary. After that, Youta touched Imari and she immediately aroused and turned to his side. Anymore, she threatened to fight against castle guardians, after they came to the place. Later, she continues her cooperation with Youta and defectors. During the battle with Yaruya, she saved the day by shooting Yaruya's nucleus, which allow to Youta to kill the witch.