My Glasses Will Be Able to Conquer the Whole World, I Suppose. Eile's Strange Life with his Glasses

On the day of selection， a boy named Eile discovers that he has the gift to create glasses. Wasting no time， he puts on a pair and sets off for the royal capital where his older sister， Holn， lives. However， he soon discovers that these glasses possess an astonishing power. “Could this be the key to ruling the world?” He wonders. And so begins the strange and outrageous adventure of a boy with mysterious glasses and his almighty -if a bit scatterbrained - sister!

(Source: Manga Mirai)