The Saint's Magic Power is Omnipotent

聖女の魔力は万能です

Pulled out of her overworked Tokyo office one night, twenty-something Sei Takanashi finds herself dropped into the kingdom of Salutania alongside high-schooler Aira Misono by a Saint-summoning ritual. The crown prince Kyle leaves the palace with Aira on his arm and waves Sei off as a mistake, so she simply walks out and takes a job at the palace's Medicinal Flora Research Institute. The potions she brews turn out absurdly potent: every product she touches gets a fifty-percent boost, and palace staff slowly realize the wrong woman may have been written off.