I'm Standing on a Million Lives Volume 17

Iu thought she’d found the dragon bishop at last, but it seems more than one Fohno is hiding among the six body doubles. Worse yet, she and Glenda are in the wicked sorcerer’s clutches, ready to be brainwashed by his creature magic. Even if the dragon bishop is defeated, his magic may linger, altering their minds forever! Can Yotsuya and the others stop the ritual to empower the dragon and save their friends, or will they need to make an impossible choice?