She was Just a Potato Farmer's Village Girl, Until She was Proclaimed as the Divine Sword. summary:
Even if you don't want it, it will grow!?
A battle fantasy of girls who put their youth on swords! Growing up on a potato farm, Tremina is a normal girl who loves to eat. However, at the behest of her next-door neighbor, Cephalis, they both enrolled in the Knights Academy!! Contrary to her easy-going personality, her fighting skills rise dramatically, and before long, her ability catches the eye of the princess...!?