Song of Everlasting Regret [Matriarchy]

Blurb

While vacationing by the sea, Shang Heng found a beautiful mermaid. His song was ethereal, his looks peerless, and his pair of blue eyes seemed to bewitch people like a hook-shaped crescent moon. So Shang Heng took him home.

Not long afterward, an enemy nation invaded and war spread. Worried for the mermaid's safety, Shang Heng sent him back.

Changge thought she was taking him out as usual. Happily, he gathered lots of pearls and shells from the seabed to give her. But when he looked up, the shore was empty. He waited a long time, but the woman never came to fetch him. The sun rose and set several times before Changge finally realized: she didn't want him anymore.

Changge wanted to find her. He spent decades finally gaining human legs, then came ashore and searched for a long time, only to discover that she had already married.

Changge returned to the seabed, heartbroken, and fell into a deep sleep. A hundred years later, he couldn't wait to find the woman's reincarnation, but Shang Heng still abandoned him.

Only after being abandoned again and again did Changge understand that humans really were no good. If he couldn't have her, then they would die together.

A mermaid male lead who is naive at first and turns dark later X a female lead who loves beautiful things but is emotionally detached

Content warning: Alternate history, the male lead suffers. Please do not read if this is not for you.

Theme: None