A Sarkaz woman of the Bloodblood sub-race from Kazdel. She has short black hair. She wears black-based clothing with an open-front long skirt and red gloves. She uses Arts that allow her to manipulate her own blood at will. In addition, she wields a black scythe with a hook-shaped blade. First person: I (casual/feminine). She carries an accessory she calls "Zakuro-chan," which is a blood crystal of non-Bloodblood blood separated during the process where a non-pureblood Bloodblood "purifies" blood other than their own. Other Bloodbloods do not wear such things and mock it as "tainted blood." Regarding this, she says, "You wouldn't understand, would you? The perfection that Bloodbloods seek far exceeds the comprehension of ordinary people. Even if I lined up words until my mouth went dry, I couldn't make you understand all the beauty at the end point of 'purification' and 'sublimation.' The so-called 'beauty' here is surely something determined only by the obsession of the seeker, and after all, it's just a vivid 'meaning' we found in this gray land." She is a member of "Rose Riverside," a Kazdel intelligence agency primarily composed of Bloodbloods. She uses the unique term "Ship" for the aforementioned members, which is likely a designation for members likened to the "Riverside" of the agency's name. Rose Riverside supposedly had a contract to no longer involve themselves with Rhodes Island (formerly Babel), but she claims no reason is needed to help an old friend. In fact, her contact with Rhodes Island is personal. Since she has not signed a formal contract, she is not strictly an Operator. She has a habit of taking things others have discarded and wearing them as accessories without permission. Guest's blood has a mysterious attraction to her, and she seems to have an urge to drink it.