Although he tried to settle the situation, the Prime Minister felt a sense of crisis about China's actions, and at the same time decided to bring forward the "Pegasus Plan", which consists of commissioning a new type of escort ship and establishing a new escort group with that ship as the flagship.

In April 20XY, while the IBUKI was on a training voyage off the coast of Minamitorishima, the Chinese military launched the "Shuguang Project" and suddenly began to invade Japan.

Negotiations with the Chinese government, which had begun to move, broke down, and finally the territorial recapture operation "Hayabusa" was launched by force.

Kūbo Ibuki is written and illustrated by Kaiji Kawaguchi with cooperation by journalist Osamu Eya.

The film stars Hidetoshi Nishijima as Ryōta Akitsu and Kuranosuke Sasaki as Toshiya Niinami.

The film is directed by Setsurō Wakamatsu, with scripts by Kazunori Itō and Yasuo Hasegawa and planning by Harutoshi Fukui.

[36] In 2018, alongside After the Rain, Kūbo Ibuki won the 63rd Shogakukan Manga Award in the general category.