Ever since he was little, Takashi Natsume has been able to see what others could not, namely monstrous spirits known as Yokai. Natsume's late grandmother, Reiko, would challenge Yokai to contests and the ones that lost had to sign a contract with her, binding their names to her "Yujin-cho." Ever since Natsume has inherited the book, together with Nyanko Sensei, his self-proclaimed bodyguard, he spends his days trying to return the names within the book to their owners. Natsume has been busy, navigating between humans and Yokai when he coincidentally reunites with an old classmate, Yuki. It brings back painful memories of a certain Yokai. Meanwhile, Natsume also became acquainted with Yorie Tsumura, a woman in the memories of a Yokai whose name he had returned. Yorie knew much about Reiko, but now lived a peaceful life with her only son, Mukuo. Being with this family was comforting for Natsume, but apparently a mysterious Yokai has been lurking in their town. On the way back from ... 人啊,也和妖怪一样寂寞。无论那在与不在的,都曾爱过我,都曾救了我。你的善念,终被岁月温柔以待。《夏目友人帐》:第一次发现寂寞可以那么美好。教你应对生命中所有求之不得。众妖怪的情书~玲子大人亲启。三不五时要治愈。空蝉之缘。穗之影:送你一朵温柔的涟漪。優しく、悲しい、嘘をついた(内容为中文)。 在人与妖怪之间过着忙碌日子的夏目,偶然与以前的同学结城重逢,由此回忆起了被妖怪缠身的苦涩记忆。此时,夏目认识了在归还名字的妖怪记忆中出现的女性·津村容莉枝。和玲子相识的她,现在和独子椋雄一同过着平稳的生活。夏目通过与他们的交流,心境也变得平和。但这对母子居住的城镇,却似乎潜伏着神秘的妖怪。在调查此事归来后,寄生于猫咪老师身体的“妖之种”,在藤原家的庭院中,一夜之间就长成树结出果实。而吃掉了与自己形状相似果实的猫咪老师,竟然分裂成了3个——!?