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Kaguya-sama wants to swim

Summary:

Kaguya Shinomiya asked her boyfriend Miyuki Shirogane to spend his last day in Japan together in the beach. How will the lovers make the most of their day together?

Chapter 1: Chapter 265.1: Kaguya wants to dress up.

Chapter Text

Kaguya Shinomiya was wandering aimlessly around her room, waiting for her guest whom she was gonna have an important talk with.

That guest arrived when Ai Hayasaka entered her room. “Hey Kaguya, what is it now?” Said the Hayasaka. “Hayasaka! About time you came, I was starting to worry.” Said Kaguya nervously. “Was busy with something, sorry for the delay.” Responded the blonde girl. “So what happened with Miyuki kun now?”

Suddenly Kaguya got unbelievably flustered after hearing that. “I never said it involved the President or anything like that!” She exclaimed. “But it is about him.” Responder Hayasaka slyly. Kaguya sighed softly and began speaking. “So here’s what happened.”

Kaguya and Miyuki Shirogane were in the Student Council room, not long after the rest of the Council went away, they were both pretty calm until Shirogane broke the silence. “So Shinomiya, now that we’re alone, I would like to ask you something.” He said as Kaguya turned at him. “As you know, in two days I’ll be moving away to America, and with all the things I had to deal with preparations and goodbye parties organized by friends, we couldn’t really spend a lot of time together.” He continued.

“I know President, I understand that you have been busy lately.” Responded Kaguya. “Though I’d be lying if I said I’ve been fully content about it.” “I know that’s why I wanted to tell you.” At this point a light blush formed in Shirogane’s cheeks. “As of tomorrow I am fully free until the night, so we can spend my last day here on a day long date.” He continued. “Oh!” Kaguya said as she herself started blushing, well, where do you want to go for our date?” She asked. “Well it’s up to you to decide! As long as it isn’t too much, wherever you want to go, we’ll go there.” Said Shirogane.

“Oh in that case…” Kaguya said while she was thinking, multiple locations for a date formed in her head, and then an old plan, long before they were dating popped in her head. “We could go to the beach if that’s fine with you.” “Of course!” Said Shirogane with a small smile, but internally he was having a breakdown, while he did say Kaguya could choose wherever they want to go, one of the things he was dreading for her to say is the beach, as Shirogane doesn’t know how to swim, at all. “Excellent!” Said Kaguya. “Where and when do we reunite?” “On the front of your house, at around 10 AM.” Said Shirogane trying to keep his smile.

“So, why did you call me here?” Asked Hayasaka after Kaguya told her story. “You see…” Answered Kaguya. “As you know, the President will leave in less than two days, so before he goes I want to leave a good last impression on him, that’s why I’ll need your help to pick a nice swimsuit that I’ll use on the beach.” She continued. “Back when you were a maid, you used to go to a lot of parties, I assume some of them had pools, so you must know a thing or two about swimsuits.”

“Indeed, I do have some domain when it comes to swimsuit fashion, but I must ask.” Said Hayasaka “Why are you so concerned about impressing the President with a swimsuit? Doesn’t he already… you know.” She continued as she started to blush. “Hasn’t he already seen every inch of your body.” Now Kaguya was boiling red and after quickly putting her hand on her cheek to regain as much composure as she could, she started talking. “Ye-ye-yeah, he did… but this is completely different! There are some differences between laying bare and using a swimsuit! And I heard there are people who are more impacted by the latter, right? Right!?” She rapidly spoke. “Hmm, I think I see your point.” Said Hayasaka after processing it for a bit.

SWIMSUITS! Usually, just a cloth whose sole purpose is being able to cover yourself in the water, but nowadays, it has become its own branch of fashion, specially on the girls' sides, where there are dozens of types of swimsuits. Some have argued that seeing a girl in such risque clothing is even more arousing than seeing her naked, making choosing the perfect choice for swimwear a game of strategy.

“Well if you want to get a good swimsuit so bad, let’s not waste time.” Said Hayasaka going for the room’s door. “I’ve actually been waiting for so long for you to be interested in fashion.” She said, trying to hold a tear. “This is a great excuse for a girls’ shopping spree!” Hayasaka was excitedly exiting the room when she was interrupted by Kaguya. “Wait, it’s not like I don’t want to go but, the thing is… I already have plenty of swimsuits that I got from different fashion companies owned by the Shinomiyas.” She said as Hayasaka came back in with a small look of disappointment. “Sorry, I should have said that from the beginning.” “Eh, it’s alright. Believe me, as someone that was in charge of ordering your closet, that room is as big as a small clothes shop.” Said Hayasaka. “Let’s go in.”

The two girls entered the large room filled to the brim with multiple outfits for different occasions. After entering they directly went into a corner where there were different swimsuits of all shapes and colors. “You know, I actually never checked the swimsuits themselves. You never use them, so I only needed to dust them off every now and then.” Said Hayasaka. “Indeed, I rarely went to pool parties, and when I went for company reasons, I never swam, so I never saw the need until now.” Said Kaguya.

“Let’s see… OH! I remember this one!” She said after rummaging for a bit and taking a familiar swimsuit. “This was the swimsuit I was planning to use back when I was trying to make the President confess by bringing him to the beach.” She explained, “Unfortunately we never agreed on a location for a Student Council trip, so this went unused.” “Oh yeah, I remember now.” Hayasaka said as a vague memory came back. “This is perfect, let’s see if we can now repurpose this swimsuit.” Kaguya said excitedly. “Well lucky for you, there is a changing booth in this closet, so you may want to change there.” Hayasaka said as she pointed to said booth.

“Alright, I’ll tell you when I’m ready so you can give your thoughts.” The black haired girl said as she entered the booth and closed the curtain, while Hayasaka was waiting she heard clothes rustling as Kaguya’s usual school dress fell to the floor. After a couple of minutes she was done. “Alright, be ready.” She said and opened the curtain, the next thing Hayasaka saw was Kaguya trying to strike a pose in her swimsuit, which while in her plans back in Spring of last year was to look playful and seductive, she mostly seemed flustered. She couldn’t imagine how she would have worn that in front of Shirogane. It was a plain red bikini with a string top and a regular bottom, none of them with any remarkable details, other than the short, red, translucid sarong that came with the swimsuit. “So what do you think?” She asked.

“Eh…” responded the blond girl. “What do you mean ‘eh’!?” Asked Kaguya bewildered. “It’s not bad I guess, but it’s honestly really generic, kinda what you’d expect an anime girl to wear for a cheap fanservice episode.” Hayasaka explained. “The sarong is nice, but other than that, not impressive, might as well say, that while string bikini tops work when the girl is… well… ‘endowed’, as it leaves little to the imagination. But when someone with a flatter chest uses one, it can look somewhat tacky.” She continued, as Kaguya looked completely deflated. “We still have several more to try though, so there’s no need to call defeat now.”

So the rest of the afternoon was Hayasaka making Kaguya try different swimsuits that were either rejected by the former, the latter, or both. At a certain point as a joke, Hayasaka gave Kaguya her old school swimsuit and came out of the boothe. “You know, there are people that actually are into school swimsuits, it may be the one for you.” Said Hayasaka holding a giggle. “I’m not in elementary school. I would like to try something more daring, you know?” Said Kaguya. “As you say.” Said the blonde as the black haired friend entered the booth, she decided to tease her even further, and gave her a bright yellow sling bikini that left nothing to the imagination. It wasn’t even three seconds after Hayasaka handed the clothing that it was immediately thrown out of the booth. “Come on! You aren’t taking this seriously, are you!?” At that point Hayasaka couldn’t help but let out a laugh, and after the initial annoyance Kaguya couldn’t help but join in on the laughter.

It’s been over 40 minutes and the two girls still couldn’t pick a swimsuit. “I think we are running out of options.” Said Kaguya. “But there’s still like half left!” Said Hayasaka shocked. “Yes but a good part of those are too big for me.” Kaguya was starting to grow a light blush. “I was meant to grow on them, but it never really happened.” She said. “Hmm…” Hayasaka was rummaging through the bigger swimsuits until she found a light purple bikini with a sarong of the same color. “Oh this one is actually my size!” Said Hayasaka. “You can take it, that's the least I can do.” Said Kaguya. Hayasaka while still holding the swimsuit sat right beside her.

“Hey, are you worried that Miyuki san might find a woman more attractive than you?” Hayasaka said to Kaguya’s indignation. “Of course not! I don’t think so lowly of him! It’s just… he’ll be going away this Sunday, and I have to wait until next year so I can go to Stanford and reunite with him.” She said gloomily. “That’s why I want to make a good last impression on the President, our final last memory for a while should be as beautiful as possible.” Hayasaka sighed and spoke to the black haired girl. “Kaguya, you know him better than no one, so you should be aware that whatever you’re wearing he’ll think it’s pretty. If anyone should know what to wear it should be you.” “I see…” Kaguya said as she got up and looked at the remaining swimsuits.

“By the way, I noticed you went back to calling him President. I thought you started calling him Miyuki chan?” Asked Hayasaka. “I do… every now and then… I did it two days ago!” Responded Kaguya. “But didn’t you start 2 days ago?” Asked the blonde. “It doesn’t matter anyway…” responded her black haired friend. Eventually, she finally picked up the one that attracted her the most. “How about this one, it looks fancy enough.” She said. “Oh! I’m sure this will look great on you!” Said Hayasaka as Kaguya excitedly entered the booth.

The sun was setting in the Shirogane household, and the eldest son Miyuki was getting ready to go outside with a bag on his shoulder for a certain reunion when he was stopped by his sister Kei. “Hey, where are you going? It’s your turn to make dinner tonight.” She asked. “I’ve already ordered something, I have to do something right now.” Said Miyuki.

“Does it have to do anything with that beach date you’re going to have with Kaguya san?” Asked Kei, immediately making her brother flinch. “How do you know about that?” Asked Miyuki. “I’ve seen you checking your phone and you’ve been blushing like a little kid, so I decided to check your phone.” Responded Kei nonchalantly. “Isn’t that a breach of privacy?” Asked the blond boy.

“Anyway.” Said the silver haired girls as he ignored his question. “I assume you have your swimsuit in that bag,” Kei said pointing to said bag. “Sure, but why do you ask?” Responded her brother. “Change into it, I want to see what we’re dealing with.” Kei said. “I mean, I was planning to change when I got to my appointment…” Said Miyuki. “Now.” Said his sister dryly. “Alright, alright.” The brother said as he entered the bathroom.

“This is bad…” Kei thought to herself. “My brother is an absolute fashion disaster, what if he has a really stupid outfit that will ruin his date with Kaguya san!” She panicked. As someone that greatly admired Kaguya, Kei considered her brother as a link to her as he was her boyfriend. “But what if after seeing his outfit, she dumps him… ok that may not be the case, she has a high tolerance for his crap, but still I shouldn’t take risks! It’s getting too late to go to the store and buy a swimsuit, but maybe if I rush it I can get there in time…” Kei was thinking until she heard a voice.

“Okay Kei, I’m coming out.” Miyuki said as the door opened behind Kei, as she slowly turned preparing for the worst… just to be surprised at how… normal, his outfit was. It was just a pair of dark blue string swim shorts, and on top he was wearing a plain white jacket that was closed for now. “Wait, since when did you have a normal swimsuit?” Asked Kei. “I don’t like to be overly flashy when it comes to swimwear. I would wear this more often, but usually I don’t have time for swimming events.” Said her brother. Kei gave a sigh of relief until she came to a realization.

“WAIT! If you have normal taste when it comes to swimsuits… why did you buy me crappy swimsuits when it was your turn to get new clothes!?” She demanded. “Most of the swimsuits you recommended to buy were too flashy! Sorry for trying to keep your modesty!” Exclaimed the blond boy. “They were just some bikinis! They covered more than enough! And even if you were so against those, you could’ve at least gotten some decent one pieces! You got some of the childiest swimsuits I’ve ever seen in my life! I had to use my own allowance to actually get myself a decent one!” The silver haired girl snapped at him. “I don’t have time for this right now, I’m late for my appointment. Gotta go.” Miyuki said as he was exiting the door. “Also aren’t you unable to swim? How will you hold yourself in the ocean?” Asked Kei, but her brother ignored her question as he went for a certain meeting for a long night.