Yuri is the main protagonist of the series. Despite lacking any real physical strength, she makes up for it by being a clever strategist who thinks on her feet and often employs a combination of traps and acting ability to survive.
When Mayuko risks dying as a result of her putting on a corrupted Mask in order to gain the strength to protect Yuri, Yuri is directed by the Dealer Kamen towards a Mouthless Mask that would grant her the status of One Closer to God should she put it on, giving her the ability to control Angels and save Mayuko.
Though Mayuko is saved by Shinzaki before Yuri can do so herself, she is later able to use her Mouthless Mask powers to take possession of the Great Angel away from Aikawa.
