Halloween Fireworks [Diamond A]

Five-year-old omega Sawamura Eijun moved to Tokyo with his parents and became neighbors with Alpha Miyuki Kazuya, the son of his mother's best friend. For reasons of their own, the two families arranged for them to marry when they grew up.

After the two watched an exciting baseball game together, they were captivated by the sport. They also met the ace of the prestigious Seido, Kataoka Tesshin, and coach Sakaki Kojiro...

Miyuki and Sawamura learned baseball under Coach Sakaki. They joined a little league team in elementary school and became famous in junior high for their outstanding battery...

In high school, they chose Seido High and began a new challenge, aiming to win at Koshien...

What if Miyuki and Sawamura were childhood friends? (Miyuki and Sawamura are in the same grade; nonstandard ABO setting.)

Ace of Diamond fanfic, crossover with Haikyu!! (Haikyu!! characters' ages follow Ace of Diamond; Miyuki, Sawamura, and Kenma are in the same grade.)

Miyuki/Sawamura pairing.

Miyuki is an Alpha, Sawamura is an Omega.

An ABO society with equal rights.

*Halloween Fireworks: another name for the Taurid meteor shower.

I looked it up, and apparently children in Japan can't start elementary school early. But I was determined to make my pairing the same age, so I resorted to any means necessary :)

Warning: If there are any mistakes in the baseball or volleyball details, feel free to point them out kindly. My sources for the technical details are the anime and the internet, so there may be errors or omissions. Please bear with me.

I'll try to keep things brief before high school and focus on what happens afterward. (That's what I say, but I can't guarantee how it'll turn out.)

A self-indulgent fic, one chapter at a time, for whenever I want to read something but can't find anything!!!

Cover commissioned from artist: Niangao Qicha

2024.11.26

Revised 2025.2.2

Theme: A young heart's passion never dies.