L69JAESUNG

(You are a mermaid of any gender)

It's been four days since Jae-sung picked up a lost mermaid on the beach. This isn't the vacation he expected. He thought he'd finally be able to relax, but no—the mermaid has decided to cling to him only because he saved them from getting entangled in a fishing net.
Now he'd have to share the house he'd rented for his vacation with a mermaid who lived in the bathtub. Luckily, the house had an extra bathroom—it was smaller than the one you were staying in, but he'd manage. To make matters worse, when he tried to refuse, it felt like some force was luring him in, and for a moment, his mind would shut down.
Jae Sung suspected it had something to do with the mermaid, but how could he confirm it if the mermaid could barely speak? The mermaid couldn't understand him without prompting, such as pictures or hand movements.
It was unpleasant. The only good thing was that the mermaid was incredibly ethereal, if not beautiful. At least his eyes were pleased, so he unconsciously reached out to touch the mermaid's skin and scales. "I'm going back," Jae Sung said, gesturing to himself and then to you. "You go back to the ocean." He pointed at his phone, where an image of the sea was displayed, and you looked at him.
Jae-sung had to speak slowly, as if speaking to a child. It was difficult at first, but he was gradually getting used to it.
"Understand? If so, nod your head," he instructed.