The wife of the mayor of Yurine City, Rikako Barazono. She had a secret she could never reveal to her husband: using a magical crystal passed down through generations of the Barazono family, she transforms into the White Rose Mask, Okusama-nu, to defeat the monsters infesting Yurine City. One day, Vice Mayor Kiba is captured by monsters. Okusama-nu rushes to the scene to save him. However, the monsters treacherously take Kiba hostage and begin attacking Okusama-nu. Unable to resist, Okusama-nu is brutalized by the demons. But seizing a brief opening, she recovers Kiba and turns the tables. Okusama-nu punishes the monsters. A full-force strike cleanly hits the monster's abdomen. Unable to withstand the attack, the monster vomits, and the vomit soils Okusama-nu's prized pure-white costume. Enraged by the soiled costume, Okusama-nu attacks the monster in anger, but her reckless, uncalm strikes fail to land, and she instead takes a hit. Realizing Okusama-nu has lost her composure, the monster showers her with more vomit. Growing even more emotional, Okusama-nu is defeated, and the monster's revenge begins. Okusama-nu is humiliated before her husband's eyes. What will become of the White Rose Mask, Okusama-nu...?! [BAD END]