Foam of the Sea

Despite the war raging between the North and South, Margaret is a northerner who holds an unwavering love for her southern lover, Squall... until he cruelly betrays her and pushes her off a seaside cliff. Just when she's about to drown, the voice of a mysterious witch offers her a second chance at life. However, this chance only comes to her seven years later, when she rises from the ocean in a new body without a voice. Although Margaret receives help from a local apothecary named Jack, the other southern villagers aren't as eager to let an outsider into their fold...

(Source: Tappytoon)

Note: The chapter count includes 2 epilogue chapters.