As he flips through the pages of a borrowed book, university student Kiyotaka Hirose discovers a love letter that was carefully tucked away. Though the identity of the intended recipient remains a mystery, the writer's name is written in plain sight - a fellow student who has decided to leave Tokyo and return to their hometown. Wanting to ensure the letter is delivered to the rightful person, Hirose embarks on a mission to locate them. Along the way, he encounters Seiji Hanashiro, a black-market match seller. At first glance, there is an undeniable chemistry between the two men. Fate and their emotions become entangled as they navigate the aftermath of a single love letter, causing their lives to turn upside down.
