Reborn as a Little Mousekin, I Have Nowhere to Run from Catgirls

Swords and magic, darkness, firearms, orcs, heroes battling demon lords, and the Steam Age.

Karl can hardly believe that, thanks to the Rebirth Goddess's blunder, he has to survive in this challenging otherworld as a mouse with only six years to live. And somehow, this nobody has been given the Great Sage's quest.

“Defeat the Demon Lord?”

“Mouse, to get revenge on you, I'm going to marry you!”

“Get lost, you cat!”

As a fake sage, Karl has to get away from this ungrateful catgirl first!