Ikyou no Tsume Nuri Minarai (Series)

Keiko Sahara, an office worker with a hobby in gel nails, is suddenly transported to a world where magic is used through nails. In this world, "Nail Painters" create spells by painting magical materials onto nails. By chance, Keiko becomes a nail painter apprentice and begins a new life in this other world, working alongside eccentric master sorcerer Rocco, his apprentice Hou, and her nail painting mentor Lido. This is a workplace fantasy about her journey as a nail painter in a magical realm. (Source: MAL News)