Warning: dangerous levels of fluff ahead. Read at your own risk.
Moon walks along the beach, shuffling her feet a bit and kicking up sand as she goes. She's tired of this bright, tropical paradise and she wants to go home. But at the same time, she's feeling a little lonely without Rotom. She could use some company - even if that company happens to be Sun's.
Suddenly, she feels a touch of something cool and wet on her arm. The first time, she ignores it because she thinks she imagined it. But by the second time and the third time, she realizes that there is something dripping on her. She glances up at the sky and the raindrops start to fall with greater frequency. "I thought it was always sunny in Alola!" she complains. "What's with this sudden downpour?"
But complaining about the downpour doesn't stop it from pouring down. Moon groans inwardly as she runs inland, hoping to find someplace to shelter until the storm passes. By the time she finds a house a little way from the beach, she and her clothes are thoroughly soaked.
She stumbles up the front steps of the little wooden house, which is raised up on stilts as a precaution for storms much worse than this one. The porch offers some cover, but it's not much. So, Moon knocks on the front door, hoping the residents of the house will be willing to give her shelter. The door opens, and she's shocked to realize that she recognizes the lively eyes, scruffy blue hair, and catlike smile of the boy who opens the door.
"S-Sun!?"
"Moon! Come in, come in!"
He opens the door wider and gestures for Moon to enter. She accepts his invitation, but only because she wants to get out of the rain, she tells herself.
She enters the house and immediately starts to shiver. "I'll get you a towel," Sun offers.
She nods and looks around. It's a lot tidier than she expects from Sun, and a bit big for one person to be living in. He heads over to a bathroom on the other side of the living room, which sports a small kitchenette at the entrance and a couple of couches around the center. There are two other rooms in the back and a row of windows on the right wall, along with a sliding glass door that opens out onto a side porch.
Moon also notices an umbrella stand next to the front door and notes that it would have been nice to have one of those when the rain started. Suddenly, Sun calls, "Catch!" She turns and sees him standing at the edge of the kitchenette, tossing a towel to her. The towel falls on the ground a foot away from her.
"What was that supposed to be?" she asks disdainfully, picking the towel up and wrapping it around her shoulders.
"Not that," he admits.
Moon grunts in response and takes off her hat, wringing the water out of it. "You can hang your clothes in the bathroom to dry," Sun says cheerfully. "I'm borrowing this house from an old family friend, so you can borrow some of her clothes if you want. They'll be in the master bedroom, on the left there."
Moon nods, and curiosity compels her to ask, "Do you live here alone?"
"Yep," he says. He picks his hat up off of the kitchenette counter and adds, "There's food in the fridge if you're hungry. Help yourself."
"Are you going somewhere?" Moon asks.
"Yeah," Sun replies. "The professor entered me in the battle tournament tomorrow..." He makes a face at this. "So I have to get the jobs I had scheduled for tomorrow done today."
Moon frowns. "You shouldn't be going out in such a storm," she says.
Sun shakes his head. "I'm a courier. I get paid for delivering goods on time, rain or shine."
Moon watches him as he puts his hat on and opens the door. He's kind of annoying sometimes, but she's still amazed by his dedication to his job as a courier and his goal to earn 100 million yen. That requires a kind of persistence that she's never seen in a guy before. "He's different, but in a good way," she murmurs. "Most of the time."
Sun glances back at her. "Did you say something?"
"No," Moon replies. She hesitates for a moment, then points to the umbrella stand next to the door. "But if you're going outside, you should take an umbrella."