I, a Mermaid Mutant, Have Become the Detective's Pet

[Hundred + battle + double heroine + yandere + 1v1] Haimo, who is a mermaid mutant, accidentally learns that she is in the world of a novel, and that the only survivor of the village she massacred ten years ago was the heroine of the novel named Xia Yu? In order to change the tragic fate of dying in the tenth chapter of the novel, Haimo had to get close to the "immortal detective" and tried his best to improve the heroine's favorability towards him, in order to save his life when the truth was revealed. However, a detective is a detective after all, and every flaw Hai Mo unintentionally exposes will lead to the truth coming to light prematurely. "Alien, may you fall into hell forever." Said the cold girl in a trench coat. "I don't want to die!" When Hai Mo woke up from his dream, he realized that the previous death was just a deduction from the future. Since there is no way to prevent the identity from being exposed, let Xia Yu adapt to his existence. As a result, the mermaid, who is naturally fond of freedom, was forced to wear shackles. When Xiayu was sunk into the sea, Haimo jumped in desperately. When the city fell, Haimo revealed his true identity and led her to escape. In the Anhai Research Institute, Haimo personally handed over the future of the ethnic group to Xia Yu. When the final moment comes. "Why? Haimo, don't you want to live?" The usually indifferent girl collapsed and hugged the constantly mutating mermaid. "Yes, I really want to live." Haimo's eyes were full of confusion. Since when had she been deceived even by herself?