High School DXD, Vol. 19 (Light Novel): Durandal of the Student Council Election

It's third term, and Xenovia's running for Kuou Academy's student council president! Issei and the others have their hands full supporting her, which means it's the perfect time for something to go horribly wrong! A group of exorcists stages a coup within the Church, and Xenovia and Irina have been tasked with quashing it. Xenovia already had plenty on her mind with the election coming up, but once the identities of the coup leaders are brought to light, running for president will be the least of her worries...