The World's Strongest Witch, Vol. 1 (light novel)

When Rona manifests what seems to be a terribly useless skill, she's considered an embarrassment to her family and gets kicked out of the house. With no money or food, she nears her darkest hour...when she suddenly figures out how to use her skill called "Internet". It allows her to produce unlimited valuable items and even acquire rare equipment without participating in any events. With this skill of god-like knowledge, she can do anything she wants!