Unspoken Fireworks

It's the last summer of high school, and the usual summer festival.
Standing in front of his childhood friend in a yukata robes, he just couldn't bring himself to say the words "I love you."
With his unrequited love drowned out by the sound of fireworks, the summer came to an end...
This song is an acoustic J-pop ballad that depicts the "unspoken love" that everyone has experienced at least once.