Two kingdoms. Two different rulers. One Otherworld. The fight between two magic kingdoms-Lairhart and Arunafeltz-affected generations of creatures in the Otherworld, a place where sorcerers, witches, wizards, elves, werewolves, and vampires exist. Meanwhile, ordinary mortal Zeira Saldivar only wanted to be the perfect daughter, the responsible student council president at Finelry High, and to be the person her friends can always rely on. She was clueless that she is more than what she wanted to be, that she has a more important role to fulfill for the sake of everyone in the Otherworld. She is the lost heiress and she has to fight with them so they can return to their home-to their own world. Sorcerers and vampires can't live as one, and she is doomed to be a part of either or both sides. But that's not the only problem . . . Will Zeira be able to fight without knowing her real powers? What if she becomes the enemy in the process? What kind of heiress will she turn out to be?

𝗘𝗿𝗶𝘁𝘆𝗶𝗮𝗻 𝗧𝗿𝗶𝗯𝗲𝘀 𝗦𝗲𝗿𝗶𝗲𝘀, 𝗕𝗼𝗼𝗸 ＃𝟮 || As the next head of the Shinigami tribe, Rielle was given a mission to infiltrate their archenemy's base, Tantei High, in search of any information about the legendary seventh sense. Her animosity toward the Senshins made it hard for her to get closer to her goal, and worse, Hideo, the heir to the Senshin's tribe seat of power, had already deemed Rielle suspicious. But as she spent more time with the Senshins, she had began questioning the beliefs and principles she had adhered to for a long time. Trapped between her responsibility as an heir, and her personal feelings, Rielle must choose the side she'd stay with.