When a comet strikes the earth and a mysterious disease starts to kill off humanity, bugs rise from the earth and begin the extermination of mankind. Now it's up to those left alive to fight back against the horde.

To carry out his missions, private detective Kei Hanayashiki, nicknamed "the Punching Ball", asks his clients to hit him. Thus, charged with their emotions, he goes out to solve his investigations with the force of his fists!

translated from ebookjapan: An action comedy depicting the exploits of martial artist Tsuyuki Kousuke. As the future director of the Tsuyuki Martial Arts Gym, Kousuke undergoes strict daily training from his grandfather, Denjuurou, on top of attending high school. One day, he saves a strong-willed girl named Minatsu who had gotten mixed up with some delinquents, but...!?

Stories featuring the biographies of four famous horror mangaka: Shinichi Koga, Hideshi Hino, Junji Ito, and Kanako Inuki.