Nanase Fairy Doll Spell...? (Patreon)

Nanase's phone was readily available, but why TEXT your girlfriend using a fancy cell phone, LIKE A PEASANT, when you can use fairy doll magic to contact her?

Because for some reason the spell turned you into a fairy this time, and you're in the comic shop with tons of witnesses! That's why!

Also because. for goodness sake, Nanase, you have a phone. Just text her.