Shinda musuko no ihin ni musuko no yome ga haitte ita hanashi, The Story of the Daughter in Law Who Was in My Son's Relic, The Story of the Daughter-in-Law Who Was in My Son’s Relics, The Story That the Son's Wife Was in the Dead Son's Relics, 死んだ息子の遺品に息子の嫁が入っていた話