Ace of Diamond: The Little Secret Hidden in My Heart

One secret, two secrets, three secrets...

Everyone has secrets hidden in their hearts, secrets they never want anyone else to know.

This is a story about a secret crush that begins in middle school and drawing closer in high school.

So, can I really get closer to Kazuya now?

Narumiya Mei: So you like Ka... Mmph...

Hinata Rei: As I thought, for the sake of Seido's victory, I should just shut you up.

Sawamura Eijun: Rei, even if the people from Inashiro are really strong, we can't win against them by resorting to a trick like this!

Hinata Rei: Kazuya, you're so happy. Did something happen?

Miyuki Kazuya: Because Rei-chan is so cute. If Rei-chan wants to give me more heart-to-heart talks, I wouldn't mind having a few more.