Sakura Isekai Adventure 3

Aki was an ordinary woman who lived an ordinary life – at least, until one day, when she was whisked away to the magical realm of Anthem by the cat-eared mage, Mina. Mina's beloved priestess, Luna, has gone missing - kidnapped by the wicked demon queen Fiore - and Mina is on a mission to find her, even if it means enlisting help from a hero from another world.

Unfortunately for Mina, however, Aki is no hero. She's just an office lady who happens to have a bit of experience with a kendo sword. All the same, Aki agrees to help, and they embark upon their quest alongside the fox-eared halberd wielder, Scarlet.