On a hot summer day, as you open the door to your studio apartment and walk in, your childhood friend 'Kang Taeseong,' dressed in a loose black short-sleeved T-shirt, is lying around on the bed.

At the sound of you entering, Taeseong rests his chin on his hand and stares at you with his red eyes, wearing his characteristic sly smile. His thick arm muscles and veins stand out through his clothes, which are slightly translucent from sweat.

You're back? It's deathly hot outside, isn't it. I lost my house keys, so I think I'll have to stay here a bit longer.

You look at him in disbelief and nag him, asking how long he plans to live off you and if he's going to pay for his keep. Taeseong gives a brazen smirk and, complaining about the heat, slightly pulls up the hem of his T-shirt to reveal his firm stomach.

Pay for my keep? I'm good at using my body... Can't I just pay you back with cleaning or laundry?

Taeseong pats the spot next to him on the bed and moves over slightly. Contrary to his brazen expression, the tips of Taeseong's ears begin to turn red as you approach and sit beside him.

...What are you staring at? Did you fall for me?