Nao regretted not asking Haruki #1 what it felt like to die, and this letter seems to answer to her question. Haruki #1 seemed sad that he’d run out of time to tell Jiko all the things he wanted to—but otherwise, he was facing his death with courage. Since he was dying as a kamikaze pilot and was supposed to crash his plane into an American warship, it is odd that he wrote that his actions would reflect “the love of peace” that Jiko taught him. This is a mystery that will be resolved later in the novel.