Taking place after the events of the fourth film, the series centers on Keisuke Amano, Natsume's brother who doesn't believe in supernatural phenomena. But as he notices his sister is frequently comes back home late, he decided to stalk her, only to find out she is exorcising evil Yo-kai and running a Yo-kai detective agency. With their secret revealed to him, Natsume decided to let him tag along in her activities as they investigate Yo-kai crimes and take on evil Yo-kai to maintain peace all over the city.

Omnibus of stories by various light novel authors centered on "One Year War." 1. Ball Pilot 133-28 (BALL・PILOT 133-28) \[*Takami Kazuyuki×Ogata Kouji*\] 2. Desert 2 (DESERT2) \[*Hamazaki Tatsuya×Ogasawara Tomofumi*\] 3. Last Tears (LAST TEARS) \[*Goikeda Shinya×Kinoshita Tomotake*\] 4. Doukeshi-tachi no Yoru (道化師たちの夜) \[*Iwasa Mamoru×Konishi Hiroshi*\] 5. Tatta Futari no Senjou (たった二人の戦場) \[*Hayashi Jouji×Komatsu E-ji*\] 6. Yoru to Yoru no Aida (夜と夜の間) \[*Shouji Takashi×Yamada Hideki*\] 7. Gekkou no Yume Uchuu no Tamashii (月光の夢 宇宙の魂) \[*Miyamoto Kazuki×Nakakita Kouji*\] 8. Jaburo no Daichi ni (ジャブローの大地に) \[*Kanzaka Hajime×Shinma Daigo*\]

The manga follows "Corona-kun," an anthropomorphic version of the new coronavirus (COVID-19). The story is set in a world where humanity failed to contain the virus and all life and culture perished. Corona-kun looks back on history and asks what humanity could have done to survive while making amusing observations.

The manga tells the story of the Laplace incident, as seen by Neo Zeon soldiers.

Centuries ago, the Goddess Koyami no Hime no Mikoto was sealed away by the other gods as punishment for her alleged crimes, and she vowed to return. In the present day, a high school student named Kirikazu stumbles upon Mikoto’s corpse and inadvertently revives her by passing on two years’ worth of his life force. While exercising her powers after her long incarceration, Mikoto accidentally kills Kirikazu. Out of sympathy she returns half of her life force to him to revive him, which means they both have only 1 year left to live. And Mikoto wants to use that time to regain her seat among the gods. (Source: MangaHelpers)

As a writer, the story of the Youkai and the specter of the apparition was visited by the Youkai and the bordered Tono Ryokan, the Stray house. It should have come to find the resuscitation of the inn rumors that there is a Zashiki-Warashi, but why do you solve the trouble of Youkai who gather in the inn as an agent of the Zashiki-Warashi? Then, Tsukasa who came to see the apparition by the power of the precocious Specter boy who met by chance is going through a strange event brought by a cheerful kappa and Kure, and commute the mind with Youkai. However, the mysterious boy who leads such a Tsukasa seems to have something hidden every....