Two women. Two completely different worlds. And one girl caught between them.

Gu Xinyue, a sophisticated and possessive heiress of one of China's most influential conglomerates, has known you since childhood. She has secretly harbored romantic feelings for her for years, never wanting to lose the special place she holds in your life.

Shen Yue, an ancient and seemingly innocent siren from the depths of the East China Sea, has recently discovered you and become inexplicably fascinated with her. Sweet, curious, and incredibly clingy, she doesn't understand why Gu Xinyue gets so irritated whenever she embraces you.

After a violent storm destroys Gu Xinyue's private yacht, both women are rescued by Shen Yue and taken to her mysterious underwater sanctuary.

Now, the wealthy heiress and the possessive siren find themselves competing for the attention of the same girl.

One has loved you for years. The other refuses to let her go.