The hit manga adaptation of the 2021 movie of the same name, *The Great Yokai War: Guardians* is the epic adventure of Watanabe, a seemingly ordinary student who inherits the power of a legendary monster hunter, to defeat the monstrous yokai rampaging towards Tokyo! After ancient fossils are disturbed by an earthquake in Japan, the spirits of evil yokai manifest as gigantic monsters, rampaging towards Tokyo! The only person who can stop it is young elementary school student Watanabe who is the unknowing descendant of a long line of legendary monster hunters! (Source: Titan Manga)

Taking place in the year 1937 on the eve of World War II, the story involves a mysterious spy training organization known as the "D Agency." The organization is established by Lieutenant Colonel Yuuki from the Imperial Japanese Army. His ideals lead him to recruit people beyond military academy graduates and personnel, while training them to become skilled agents in arts of manipulation. These agents would become a specialized team to conduct operations. One such antihero agent, under the name Jirou Gamou, goes on a harrowing mission to uncover secret documents titled "Black Notes," while battling forces from within and without his own ranks.

Collections of one-shots that won the monthly Hop Step Award from 1987 to 1996.