Wolf & Parchment, Vol. 1 (Manga): New Theory Spice & Wolf — Isuna Hasekura

Once upon a time, Tote Col, a wandering student of barely ten years, was saved by a traveling merchant and a wisewolf. Their journey ended fifteen years ago, but
Col's is just beginning. The priest hopeful, accompanied by his wolf sister, Myuri, sets out with an ambitious plan in mind -- to translate the sacred scriptures into the
common tongue with the help of the kingdom of Winfiel and the Debau Company. But the Our Bookof God project challenges the authority of the all powerful Church…!