Mori Kotarou

In front of a straightforward and serious high school student, Yu Mashima, a super sadistic sexual master who hunts unidentified creatures \[UMA] that appear with fog and a super sadistic maid .. Is your new life in the town of memories a pleasure, anguish, and rosy days? \[Machine translation from Amazon]

From DrMaster: Meet Pam Akumachi, an energetic 13-year-old junior high student who has just turned into …a little devil! One day, when Pam and her friends try to summon the "benign devil," the magic circle goes out of control and Pam is transported to a strange parallel world where angels and devils reside in an uneasy coexistence.

Humanity is plagued by the undead Reversed, and no one can stand against them. No one except... a high school girl named Shion-chan from another time? She'll resurrect this rotten world with her maiden fists!

In their closed-off underground village, Kamina and Shimon chafe at the limits imposed by the village elder. Yet all this will change, when Shimon stumbles across a fantastic device - just as the village's peace is broken by a violent intrusion.