Free! Short Stories (Reader Insert)

Haruka Nanase (My Favorite Kouhai)

Haruka Nanase is a first year junior high school while (Y/N L/N) is a third year. (Y/N) is currently in a relationship with Natsuya Kirishima, a third year too and a swim club's captain. (Y/N) is not a member of swim club but she's there to wait for Natsuya as they're walking home together.

As your relationship with Natsuya is legal to both parents, you usually go to their house and sleep there with Natsuya. And of course, you're both "doing things" that's not suitable for your ages yet (A/N: Sorry guys, where were we? 😂😂😏) . Maybe this is why Natsuya goes crazily jealous and annoyed whenever you're talking about Haru.

Ever since Haru joined the swim club along with Makoto, Ikuya and Asahi, (Y/N) and Natsuya are always arguing. Even in front of many people on the road while walking. They are arguing because Natsuya is way too annoyed by Haru's blunt attitude towards him. But (Y/N) seems like she's on Haru's side.

"(Y/N), as a captain, I won't tolerate that kind of attitude! Aside from his senpai, I'm his captain too! So, why do you seem like you're on his side?! Huh?!" Natsuya said aloud. Really angry.

"Really, Natsuya?! Is it just about a senpai-kouhai or captain-member thing?! Because your acts towards Haru is way too much! You hear me? WAY TOO MUCH!" you replied back aloud.

"Is it a big deal, (Y/N)?!" he retorted.

"Shut up, Natsuya! I understand that you're their captain! But, what I don't understand is why are you that harsh when it comes to Haru?! It's like what did he do to you?!" you said.

"Because his acts offend me. Enough for me to get annoyed! He's disrespectful!" Natsuya explained harshly.

"Well, as his senpai and an older schoolmate, you must be the one who understands that well because you're 15 while he's just 12. Natsuya, he's just 12! So, expect that he's just developing himself and growing up as well. You've been there before you ever meet me, right?!" you retorted annoyingly.

"Tch! (Y/N), tell me! Do you like Haru?!" he asked while holding your arms really tight.

"Ah! Get off me, Natsuya! Of course not! Damn! That hurts!" you managed to say while yanking your arms away that Natsuya held tight. You rubbed those immediately.

"Then stop defending him! Or else...!" Natsuya said but you cut it off.

"Or else what? You're gonna break up with me? Such a kid! Well, even if we actually break up right now, I know you'll be the one to chase me after! Hahahahaha! Come on Natsuya. Grow up!" you teased while running. Natsuya gritted his teeth and chased you as fast as he can.

*****

You're already at the swim club when you saw Haru alone. Of course, he knows you for you are his captain's girlfriend. But what he didn't know is that you actually feel sorry for whatever Natsuya did. So, as you have the chance, you walk up to Haru and tried to talk to him.

"Uh, Nanase-kun. Can we talk for a while?" you shyly said.

"Uh, yes. (Y/N)-senpai. What do you want to talk about?" he asked. Looking at you curiously. But, he's kind of nervous too.

"Mmm... How do you feel whenever Natsuya talks to you harshly?" you asked softly. Haru's eyes went wide for he's not expecting that question from you. He expected that you're gonna talk to him in a harsh way too just like Natsuya.

"Huh? Why do you want to know, senpai? Well, seemingly it hurts. But it's okay. I can manage it." he simply said. You smiled a little knowing that Haru is good at handling emotions. Your heart somehow felt relieved just by knowing that. Haru just stared at you with his emotionless face.

"Well, I'm sorry for Natsuya's blunt attitude. He's just like that. Even to me some time." you apologized. But Haru just shook his head.

"It's okay, (Y/N)-senpai. You don't have to." he simply said and smiled a little. You walk up to him and pull him closer to you. Haru looked at you weirdly.

"You know what, Haru? I should be dating you right now. Haha! But I can't. Because you see, I'm already with Natsuya. One more thing, you're way too young for me. But, don't forget this thing. You are my favorite kouhai." you said and winked at him. Haru's eyes went wide upon hearing those words from you. His heart even skipped a beat. You looked at him happily and you kissed his soft lips for a good couple of seconds. He's now totally shocked. You went back to your seat but Haru is still frozen at his spot. He just can't believe what happened. Not long after, he proceed to do his exercise since everyone came too. He looks at you while you're now busy talking with Natsuya.

"I like you too, (Y/N)-senpai. Thanks for making me feel better." he mutters.