A woman writes a letter to a young man, leading to a correspondence with his father that unveils the truth of a 24-year-old high school romance, his son's death, and the power of love letters.
Haruka Ayase
Ami Touma
Kanata Hosoda
Masaki Suda
Satoshi Tsumabuki
Koichi Sato
Takuma Otoo
Miu Tomita
Hideyuki Kasahara
Kanji Tsuda
Hideko Hara
