[Machine Translation] I want to find a letter buried in a huge pile of books - Suga, a high school teacher, is approached by a visitor standing in front of his neighbor's house. When she tells him that her neighbor has passed away, the man, Takamura, is stunned! In fact, he claims to have received a letter from his late grandfather. Moreover, the neighbor had apparently written the same letter. Curious as to what is written in these two letters, which have been sealed for more than half a century, he begins to search for them.