Hilda Arc[]
Meiya represented the Vatican at the Bandire and tried to preach peace to all of the people who gathered there until she got extremely angry and hateful towards Katze Grasse and Hilda due to their existence being against her religious beliefs and from past battles.[1] When the time came to choose sides, Meiya chose the Deen faction for the Vatican. Then, after the fighting broke out, Meiya and Katze began fighting each other to the death until Kinichi Tohyama (Kana) put a stop of them.[1]
After the fighting had ended, Meiya went shopping for alcohol to help disperse her ability within her body to prevent death.[2] Then, she met up with Kinji Tohyama and Tamamo at his dorm room to check up on Aria H. Kanzaki, who was recovering from getting the golden shells extracted from her body. It is there where she formally introduces herself to Kinji and explained her past to him including her relationship with Kana.[2] After Tamamo suggested she purse Katze in Germany, Meiya gladly accepted it as it would give her an opportunity to kill her.[2]
GIII League Arc[]
Meiya participated in the Deen conference along with Tamamo, Jeanne d'Arc, and Watson where they decided without Kinji’s consent and to his objection that he would get the GIII League to join the Deen faction despite one of their agents attacking Aria, Shirayuki, Riko, and Reki.[3] They decided Kinji would achieve this by trying to seduce and take care off GIV, the person who attacked Aria, Shirayuki, Riko, and Reki, so she would join the Deen faction.[3]
Normal Life Arc[]
Tamamo mentioned to Kinji and Reki how Meiya fought Katze to a stalemate before they retreated to their respective bases.[4]
Regiment Hex Arc[]
Meiya is putting out a fire in a location. She explains Jeanne is suspected to be a traitor. She explains how her ability works. She learns that Kinji fought the bewitching blade. She Elle and Kinji head to a new location. She meets Loretta a high Bishop. She explains to Loretta what happened last night. Kaiser answers Kaiser's and Meiya's questions. She learns the true genders of Kiinji's sibling and Elle Watson. She and her fellow nuns arrive to the location of Kiniji and Lisa. She exits a vehicle. She is accompanied by ten people. She find kinji is a female disguise. She and her fellow nuns battle Patra. She says to her sisters that if they defeat Patra they will get twenty points. She captures both Kinji and Lisa. She gives kinji a hug. She tells him she doesn't suspect Jeanee being a traitor. She continues talking to him about how he should leave. She gives a him a ticket and he request one for Lisa. She tells him she will clear his name in secret. She tells him people already think she is his native wife. The church gets attacked by enemy forces. He save's Meiya's group by surrounding himself. She later saves Kinji and Lisa in the enemy's base.