Denji was a small-time devil hunter just trying to survive a harsh world. After being killed on a job, Denji is revived by his pet devil-dog Pochita and becomes something new and dangerous-Chainsaw Man!

With the climactic battle against the Gun Devil close, Aki may be wavering. Has he found something more important to him than revenge? And what is the true meaning behind the vision shown to him by the Future Devil?