The story is set in “NEO Utatake Town,” a cyberpunk underground shopping mall built beneath Japan.
There, armed groups known as YAKUZA organizations wage daily war against each other.
The year is 2045, in the small town of Matsuba-cho Shopping Arcade, somewhere in Japan.
The tsundere, busty protagonist, Hoshizuki Asuna (Asuna), lives an ordinary life until one day she becomes embroiled in an incident. She is left 60 million yen in debt by the YAKUZA organization “Matsuba-gumi” and taken to NEO Utatake Town. In exchange for wiping out her debt, Asuna must take up a Japanese sword and become the leader of the Matsuba-gumi’s suicide squad, battling hostile forces in NEO Utatake Town…
