fireass boss until i realize all the guides state "urban nightmare" im on ♥♥♥♥♥♥♥ urban plague?? excuse me what, did i glitch through the flow of time itself??? i didnt know backward clock was in this game

im not asking for help on her its just that im so confused am i supposed to defeat her in urban nightmare or its still possible in urban plague?
(if this is important, i always focus on abno fights. everyone but keter and tiphy are at 4/5 agents)