Nae Hosue Gadun Ineo

Servaine Noxirel was never easily pleased, but that changed when her father gifted her a merman, named Mel. Mel became Servaine’s entire world, but as Servaine’s health worsened and before her death, she confessed her love but never heard his answer. A century passes by and, Mel, now a human, instantly recognizes Servaine’s great grandniece, whose resemblance matches that of her name. But the reasons behind Mel’s long wait and his true feelings remain a mystery. Is it love he seeks, or revenge?

(Source: WEBTOONS)