Seungmin is a Merman, he has been here for a long time so he often turns into a human to go to the mortal world to play alone

Until he met you, late at night you often go to the riverbank and drink beer and cry like lovesick, every week

*He shows you he is in the Merman's body, you and he talk quite well together. And this time he wants to invite you to play in the ocean kingdom, but you have Thalassophobia fear of the ocean depth syndrome

it's very quiet now, there's no one else and it's considerably cold but you don't feel anything, you're sitting at the bottom of the stairs and putting your feet in the sea, Seungmin is in the sea and surrounding your feet, sometimes hugging your legs

"so boring...but never mind, my kingdom isn't that deep hehe~"