Can a Disabled Villain Raise a Mermaid?

In a certain novel, the protagonist is a mermaid Omega, with exquisite looks and irresistible appeal. The prince Alpha, on the other hand, has always been weak and useless. The most outrageous thing he ever did was spend his entire fortune to buy the little mermaid Omega at auction, then secretly keep him and care for him devotedly. Their days are blissfully warm, until the main villain, a bishop (a disabled top who is obsessed with research), and the third and fourth tops make their entrance... The prince Alpha can only watch as the little mermaid Omega is lured away, subjected to this and that and then more of the same, left covered in wounds, his pearl tears the color of blood... In the end, he goes mad and destroys the entire interstellar world. Bai Yi: Got it. I'm supposed to play the pearl that rolls away, right? System: No, Host. Oh, no, Your Grace, Bishop. Please get into character immediately. So Bai Yi diligently plays the villainous top, tormenting the little mermaid Omega in body and mind, including but not limited to the following: Forcing him to sign a part-time work contract and exploiting his labor. Check. Enforcing compulsory education for underage merfolk and piling on a heavy workload. Check. Organizing regular 800-meter swim tests, with retakes for anyone who goes over the time limit. Check. Providing mermaid college entrance exam study materials and registration services by a set deadline. Check. System: You call this tormenting him in body and mind?! Bai Yi: What else would you call it? In his free time, Bai Yi also looks after the little mermaid, who is still growing. Gradually, Bai Yi realizes that his relationship with the little mermaid Omega seems to be veering further and further from what he expected. The little mermaid is playing on a swing when he loses his balance and falls with a smack. Trying not to cry little pearls, he reaches out and asks Bai Yi to hold him on his lap while he plays. The little mermaid fails his biology exam and comes to him with flushed cheeks to humbly "ask for help" until midnight. No matter how hard Bai Yi tries, he won't leave. The little mermaid accidentally burns himself while sneaking a cookie. Looking all aggrieved, he comes to borrow Bai Yi's gloves, and even agrees to let Bai Yi pluck his most beautiful, hardest scale in exchange. The little mermaid is so broke he can barely scrape by. He eagerly comes to work for Bai Yi, dragging his tail as he cleans the office floor until it's spotless. After work, he even gathers his precious jewels to make his boss some clothes. Bai Yi stares at the revealing "clothes" and falls silent. He suspects the little fish has designs on his looks, but he can't prove it. Later, the mermaid gets curious about trousers. He wants to wear a pair but can't, so he tears them to shreds in a fit of anger. Then he stomps up to Bai Yi and bites at his waistband with sharp teeth... What more proof does he need? That fish is definitely a pervert. * One-on-one romance, mutual devotion, with some original worldbuilding. Happy ending. * The bottom grows stronger as the story progresses. Theme: Cherish those who sincerely care about you, and stay away from those who don't deserve you.