Gomibako-gurashi no Seijo-sama: Gomi Atsukai no Kodai Mahou Dougu o Naoshitari, Tsuihou Boukensha o Naoshitari no Slow Life

Mio, an apprentice saint from a commoner background, is treated like a drudge by her noble-born seniors. To make matters worse, she is suddenly expelled from the church, and literally tossed into a dumpster!

A place that should be foul-smelling and unsanitary… but for Mio, it’s pure paradise?!
The magic Mio wields is the power to restore things.

By repairing discarded items and giving them new life, Mio settles into a surprisingly comfortable existence among the trash. Along the way, she accidentally heals injured adventurers and restores ancient magical artifacts.

https://mechacomic.jp/books/253151

Having found an unconventional new home where she truly belongs, Mio soon begins working toward a brand-new goal of her own!