She Professed Herself Pupil of the Wise Man (Light Novel) Vol. 2

CUTIES VERSUS ZOMBIES
Danblf, stuck in a girl’s body and claiming to be Danblf’s disciple Mira, has been sent on a journey to find the nine sages. But when she makes it to her first destination, she finds a horrifying surprise–a city overrun by zombies! Deducing that one of the sages–the necromancer Soul Howl–must be nearby, Mira leads her growing party into the depths of a mazelike ancient temple for an all-out assault!