"Come on, it's not that much further from here!" Kaito was a few steps ahead on the rocky trail, his hiking backpack bouncing with every stride he took, and Maki rolled her eyes at his eagerness. He made it sound like she was struggling to keep up because she was out of shape, which was as far from the truth as it could possibly be, because for every one step he took she was taking two, therefore having to use more energy to keep up with his blitzing pace. She was curious about where it was that he was leading her towards, the only clue that he'd given her being that they'd have a great view of the stars; she'd never once considered that the view required an hours-long hike to get to in the first place.

When they'd left their car along the road, signs lined both sides of the rocky path saying that cars needed to be locked with all belongings secured, that overnight parking was allowed, and that to beware of bears in the woods. She hadn't thought much of the warnings, even as Kaito was getting out bags much more prepared than what would be necessary for just a simple hike that would have them back at the car before midnight, even with accounting for spending some time looking at the stars. Obviously she knew now that his bag had to have a tent in it, but then that left them sleeping on the bare bottom of the tent because neither of them had any sort of sleeping bag with them, or food, or anything of that sort. "I still don't know where it is you're taking me," she reminded him, hurrying her pace up a bit just to not be lagging so far behind. "How do I know you're not going to turn the tables and murder me out in the wilderness?"

"I'd never do anything like that, Maki Roll, don't act like I ever could!" She gave a single snort of laughter and let the subject drop, because he was not going to tell her where they were going until the were there, and so the hike continued under the darkening sky. When they got to the top of the hill they'd been climbing, the sunset was visible out in the distance over the water, a brilliant display of colors, but Kaito didn't seem interested in standing around and admiring it. "This way, we've just got like another ten minutes and we'll be there, I promise!"

"You're starting to sound really confident for someone who doesn't seem to know where he's actually going." She laughed again while he tried defending himself, but he chose to let his destination prove her wrong instead. Within ten minutes they were coming up to a cabin, nestled among the trees, with a staircase that led up to the roof. "Whoa, Kaito, is this where we're going?"

She could see him nod excitedly, his shoots of hair going everywhere. "My grandparents booked it for us for the night, we could've driven up and parked closer but I wanted to have the adventure to get here," he explained, reaching into his pocket and pulling out a set of unfamiliar keys. "Tonight it's just gonna be me, you, the forest creatures, and the cosmos."

"Sounds romantic." Maki was a bit impressed at the way this had been planned without her knowing a thing, Kaito usually being one to share all of his exciting news as soon as he could, but she didn't know how weak her reaction to seeing the cabin was until she'd seen the inside. It was decorated much like a honeymoon suite would be, with florals and reds and pinks that made her blush just looking at, while Kaito looked oblivious at what the décor meant for what usually happened in that building.

"Let's get some food in us, I made sure to get some things packed so that we could cook when we got here, and maybe once we're done eating we can go up to the roof and do some stargazing!" Sounding incredibly eager to get things going, Kaito threw down his backpack in a flash and began rooting through it, retrieving bottles of water and some "just add water" meals, a convenient pair to have in the same place. When Maki began to go through the bag she'd carried up to the cabin, she found a couple fluted glasses, a bottle of non-alcoholic cider, and some snacks for later, but before she could ask Kaito what the drinks were for he was already getting water boiling on the cabin's stove, having brought a pot with him.

Their dinner was passable at best, but it was to be expected with the kind of food they'd brought with them, and after they'd finished eating it was dark enough outside that Kaito felt it was time to go look at the stars. He directed Maki to bring everything from her bag with her, and that he'd meet her up on the roof, and rather than ask him what was going on and make them take longer she decided it'd be a better use of her time to just heed his direction in the first place.

If she'd thought the sunset was pretty out on the top of the hill, she could only imagine how much more stunning it would have been there on the rooftop. The stars were so vivid, brighter than she'd ever seen them in person, and they were reflecting on the water that she could see out on the horizon. There was no moon in the sky, which she assumed was why things were arranged for when they were—she'd heard enough from Kaito about how a bright moon could hamper stargazing efforts. "This is amazing," she said out loud as she heard him coming up the staircase, bringing with him pillows and blankets from inside the cabin. "You and your grandparents really put some thought into this."

"Yeah we did! I was lookin' up good places to do something like this and when I found this one, I went right to them and asked for a bit of help to make it work. It's not cheap to rent a cabin like this, at this time of year. Between people getting married and people who love the stars, it's hard to find an open day here that actually, y'know, works for sitting on the roof and watching the stars." Setting his delivery down so that they could begin organizing it, Kaito could see the wonder in Maki's eyes as she was looking up at the stars more than she was laying the blankets out. "They're pretty, huh?"

"Breathtaking," she replied, realizing that she was letting herself get distracted by the view rather than being much help. He'd already gotten everything organized, and had carefully grabbed her bag to get out the drinks and snacks. "I can't believe you and your grandparents picked this out of nowhere. It feels like you'd have been here before."

"Nope, never been in my life! Around here? Sure, there's a peak nearby where my grandfather took me for an overnight camping trip, we had a telescope and everything, but this place is complete new to me." Having grabbed the glasses and the cider, Kaito opened the bottle and motioned to pour it, seeing that Maki was too distracted by the stars above to see what he was doing. The image of her, sitting there on the rooftop of the cabin with the starlight in her hair and eyes, was enough to make him give an audible sigh. "You're really takin' them in right now, Maki Roll. It's…kinda nice seeing you loving what I love."

"I-I can't help that they're so bright and beautiful." Her stammering was delayed, as she pulled her eyes from the sky and towards her boyfriend's smiling face. "Come on, Kaito, don't act like that, if you weren't obviously planning something you'd be lost in them too."

Now was his time to stumble over his words and thoughts, resulting in the glass of cider he'd been pouring nearly filling all the way to the brim before he caught onto what he was doing.

"Since when was I planning something?" he asked, defensively. "I just planned the trip up here, I swear there's nothin' more going on than that!"

"I've known you long enough to know that you're acting suspicious right now, but if you want to insist you're not up to anything, I'll buy it. This time." She could hear him heave a sigh of relief and she glanced towards him, seeing him offer the glass he was holding to her. "But you're not making a great case for yourself, with how fancy this whole setup is. I mean, cider? Actual glasses? A cabin that's clearly a love suite? It's not matching what you're insisting this all is."

"It's really nothing more than just a nice date night under the stars," he said as he poured himself a glass of the cider, making sure it didn't get nearly as full as hers had. "Spending some quality time with the two things I love most in life, those being you and space."

"Can't argue with that, I guess." After he'd finished pouring his drink and had put the bottle and its remaining liquid aside for safekeeping, they gave a small toast to celebrate the moment before both taking a sip. Right away Maki noticed that her drink tasted odd, but with how dark it was even the starlight wasn't enough to let her see into the glass for anything that could be tainting her drink. Kaito seemed to be fine sipping from his, but hers had a strange metallic taste to it that unnerved her.

He looked over his drink at her and noticed how hesitant she was to go beyond that first taste. "What's wrong now, Maki Roll? I told ya, I'm not planning anything except us spending time together up here."

"Whatever cider this is, it tastes cheap or expired. That, or you did something to it." Her first instinct would have been to pour it out over the side of the roof, but the way she could see Kaito giving her a pleading look made her reconsider doing it. Instead, she told herself that if she died from him poisoning her, at least she was dying in a beautiful place, and she began drinking from it again. The taste was still there, and when she felt something hard touch her lip it took all of her strength to keep herself from throwing the glass at him. Carefully grabbing whatever the object in her drink was with her mouth, she set her glass aside and then spat out the offending material into her hand, stunned to see a ring staring back at her.

"Okay, okay, maybe I lied a little…" he confessed, setting his drink by the bottle to keep it out of harm's way. "I was thinkin' about how you deserve the world, and how I can't give you it, but I can give you a piece of it that not everyone else gets." There was a genuine tone to Kaito's voice that made Maki understand that he couldn't have told her right away what was going on, because it was meant to be a surprise for her. "It's a nice night under a starry sky, exactly where I love spendin' my time. And I'd like…well, I'd like to get to spend all my starry nights with you."

"So you want to marry me?" Maki asked, still shocked that she was holding a ring, laden with tiny diamonds that were faintly shining in the dim light. "Is that what this is all for?"

"Kinda obvious that it is, don't you think? Go on, tell me yes or no so we can get to watching the stars." He waited for a moment, before she was tackling him, showing affection that she always seemed reluctant to give. He'd known from the start that she would accept the proposal, but figuring out a way to do it without her figuring it out had proved to be mostly impossible, even if he'd succeeded on getting her off his trail for a few seconds.

Their night on the roof was spent in each other's arms, feeding each other the snacks he'd packed and drinking their cider, occasionally turning their attention from the cosmos to look into each other's eyes, or to see the way the ring fit her tiny finger so perfectly.

A/N: look, a sappy fic! prompt was cosmos