Shōsetsu-ban Kigenso Katana -Tenkū no Kumo kara Katarikakeru Katana o Motsu Kenshi-

Souta Kazama is a high school boy who grew up with only a father and a missing mother. 5 years ago, the Turquoise sword was buried in the ground. He picked it up and trained with it. In the current timeline, he started the series by defending the boy away from the bully. He got a message from an anonymous source, who was revealed to be Rikuto, who wanted Souta’s Turquoise Stone Katana. Souta defeated him, with the aid of the girl he has a crush on, Haruna. The reason why Rikuto wanted Souta’s Katana? Because his powerful boss Katana Thief Red demanded him to do so for his own personal gain.