Haruchika: Haruta x Chika - Birthday Surprise

Introduction

Hello guys :D I'm not good in writing fanfics but I will try my best to make it as fluffy as possible. I will also do my best to retain the personalities of each character, and I will also involve some side ships.

This will only be a 4-chapter short story. 5 if you include this introduction. (Just like how the brass band club was when Chika joined in :') ) I'll make another book of the two of them only if this book gets read enough.

Our main ship is HaruChika (Kamijo Haruta x Homura Chika). Well, the anime actually has prepared a ship for almost anyone so I'll stick to those popular pairings.
This fanfic's main character is Chika~

About Haruchika:
Haruchika is an anime, about a girl named Chika and a boy named Haruta. (Lol)
Here's the sypnosis:
It's Chika's first day of high school, and she's so excited to start a brand new life! Her goal is to become her image of a "cute girl". She plans to quit volleyball and start playing the flute, because it's more pretty and feminine, even though she was a star volleyball player in middle school, and she's never played the flute before. Also joining the wind instrument club is Haruta, her old childhood friend who she hasn't seen in nine years! Delicate and smart, the two are polar opposites.

Chika's time in the wind instrument club doesn't go as smoothly as she hopes. First of all, there are only five members of the club! Second of all, mysterious things keep happening... Who knew a music club could be so fraught with mystery?

There you have it.
I know, I know, Haruchika is mystery genre. But because we're trying to make it romance, there won't be any mystery here haha

Last message:
WATCH THE ANIME.

Ah, let me just add this in.
You may skip it.
Characters:
≫In the brass band club
Kamijō Haruta - childhood friend of Chika, plays the french horn
Homura Chika - childhood friend of Haruta, plays the flute
Narushima Miyoko - friend of Chika, respects Maren, plays the oboe
Sei Maren - adopted Chinese kid, friend of Haruta, plays the alto saxophone
Gotou Akari - friend of Chika, forever alone, plays the trombone
Katagiri Keisuke - club president, plays the trumpet
Asahina Sae - twin sister of Kae, younger sister, more agressive, plays the tuba
Asahina Kae - twin sister of Sae, older sister, more calm, plays the clarinet
Serizawa Naoko - childhood friend of Kaiyu, hearing problems, plays the clarinet
Hiyama Kaiyū - childhood friend of Naoko, plays the percussion (drums, etc)
Kusakabe Shinjiro - Brass Band Club's adviser, great conductor