W Also Wants to Raise a Mermaid Bathtub Guest

In a comic I like recently, the male protagonist picked up a cute mermaid. So I thought, I am so envious. Will I be able to pick up a mermaid one day? After thinking about it, this guy is really here! Sleeping quietly in my bathtub scared me. Moreover, it is a male mermaid. Okay, how to raise it? What to feed? How many times a day do you need to change the water? How can I avoid being discovered by my neighbors? What's even more surprising is that he can actually get out of the bathtub! Accompanying me to night school, following me when I work part-time, following me around when I have a girlfriend, Please, can you be more careful? Do you want to be arrested and sent to the research institute? ! Crazy! In one sentence: The daily relaxed pace of life of the Chinese male protagonist and his mermaid friends~