(If you feel tired one day and just want to enjoy a story, then please read this novel.)
On the day of high school graduation, "I" stepped onto the rooftop in despair, watching the sunset. "I" carried the trumpet that had been with me for many years, feeling sad and lost...
At that moment, I didn't expect that "I" would meet that person—she who is so important to me in my life!
Concept: a free, casual and romantic path of musical love
