Free!Eternal Summer Oneshots!

That Mistake Matsuoka Rin x Reader x Nanase Haruka

"So...Rin has a girlfriend now huh?"(Y/N) spoke seeing The Samezuka Academy's Swim Team Captain walk out with a girl in his arms

"Yeah...I don't know why Rin liked her though.."Sousuke sighed

"I...I'm giving up on him"(Y/N) spoke with a soft voice as she averted her eyes to the ground

"Anyway,Sousuke,I heard that Samezuka High is holding a school Festival?"(Y/N) immediately changed the topic and continued talking to Sousuke and that time Rin arrived

"Yeah!You should come and visit us!"Sousuke said persuading (Y/N)

"Yeah sure!"(Y/N) smiled brightly at him

"Yeah,You should go,I'll introduce you to a friend of mine"Rin said

"What friend?"(Y/N) asked raising her eyebrow

"Do you mean Haru?"Sousuke asked as Rin nodded

"Babe~Let's go?"The girl playfully whispered in Rin's ear

"Gotta go guys,See you tomorrow"Rin waved goodbye and walked away with his so-called girlfriend

"Why the fuck did I even fall inlove with him?"(Y/N) asked herself

"I don't know about you"Sousuke shaked his head
•
It had been 5 Months and it was finally The Samezuka Academy's School Festival and Rin also broke up with his girlfriend after finding out she had been cheating on Rin

That was then Rin found out he was inlove with (Y/N)

(Y/N) walked to Samezuka Academy's School Festival,Her (H/L) (H/C) hair flowing with the wind

Every eyes turned to her as she walked pass and met up with Rin and Sousuke

"Hey,Rin,Sousuke!"(Y/N) greeted with a smile

"So,(Y/N) this is the friend I've been wanting you to meet"Rin said turning to a guy who had soft black hair and beautiful Sapphire Orbs

(Y/N)'s (E/C) orbs locked with his Sapphire ones and they were locked in a trance

"Nanase Haruka"Haruka introduced himself holding his hand out

"(F/N) (L/N)"(Y/N) did the same and shaked his hand

Soon they walked around and got familiar with each other they even exchanged phone numbers until the day ended

"It was nice knowing you,(Y/N)-san"Haruka said a small smile forming on his lips

"Please,(Y/N)'s fine,Nice meeting you too Nanase-kun"(Y/N) said as she smiled sincerely amd smiled at Haruka

"Haru's fine too"Haruka replied to her with a smile,And then they parted ways

"So....What do you think of my friend,(Y/N)?"Rin asked Haruka with a big grin on his face

"She's......Gorgeous"Haruka exclaimed with a small blush

Rin stared at Haruka with wide eyes,something swirling inside his heart as he heard what Haru just said about (Y/N)

'He....Didn't fall inlove with her right?...' Rin asked in his mind nervously looking at Haruka

"I think I like her..."Haruka added,which Made Rin stop in his tracks
•
That was the fateful mistake Rin made that day 5 Years ago