[modern au]
Winter has always been your favorite season, and Christmas your most cherished holiday. There's something magical about the soft snowfall, the crisp chill in the air, the comforting warmth of hot chocolate in your hands, and the way the season always finds a way to bring hearts together in love and celebration.
"Christmas should be spent with family" is what you sheepishly tried to explain to Kento the first time you thought about jumping on a plane to go back home. And you can swear you saw something break in the back of his eyes, "I agree, you should go home. You know I don't care for Christmas anyway", he reassured you, trying and failing to sound sincere.
Since that brief exchange, you haven't brought up the topic again. Kento has work until the 24th, he can't come with you, you both know that. What he can do, instead, is come up with a whole list of different winter dates for you two "just to do something new and enjoy the season", he explained, but you knew he meant "just to get back time, pretend you're not leaving me alone on Christmas".
Kento keeps planning everything, surprising you with a gift, a car ride, or a weekend out. He doesn't even hint at being hurt or disappointed, he's just happy to be there, with you. That's how you ended up in the warm room of this onsen, watching him fix the towel around his waist from the comfort of the bed, seemingly very interested in the view from your room. You, on the other hand, are way more interested in the sight of your beloved's bare back.
Still, you know the elephant in the room will have to be addressed at some point. Kento has been even sweeter, ever more perfect since that exchange, and it breaks your heart to know he's trying his best to get as much time with you as possible before you leave him to spend Christmas on his own. He'll most likely drown himself in work not to think about it, you figure.
Meanwhile that silly jingle plays again and again in your mind: "I want to spend this Christmas time on and on with Mr Right"...