There are many manga that posit what it would be like if magic and witches were real. This is possibly the most ordinary notion of that idea possible.
FLYING WITCH (Furaingu Witchi), by Chihiro Ishizuka. First published in 2012 and first published in North America in 2017.
PLOT:
As far as Kei and Chinatsu knew, they were simply hosting their big city cousin Makoto while she went to school with them in rural Aomori. What they didn't know is that Makoto is a witch in training who has come there to further her magical studies. So while they help her get her bearings and make some friends, she helps them navigate some of the supernatural things she encounters.
