Kirei ni Shitemoraemasu ka.

With an endearing protagonist and luscious art, this seaside slice-of-life story offers tranquility in the chaos of the modern world. For two years, Wakana Kinme has run a laundry service in the seaside resort town of Atami, where she's built a fulfilling life making friends with the locals and visiting hot springs. Although Wakana has no knowledge of her own past, her cleaning services safeguard memories imbued in customers' precious items.
(Source: Square Enix Manga & Books)