Even after the Merchant of Death disappeared, Kizuna and his friends continued preparing for the upcoming Dimension Wave. Under Kanade's guidance, Kizuna honed his combat Cooperation Skills, while Kanade's all-in defense build made the party stronger than ever.
But the event is far harsher than expected, and the players are pushed to the brink-that is, until Sheryl, determined to make up for her last failing, unveils a secret plan to turn the tides.
That night, they uncover a new skill brought by the update. But before anyone can celebrate, Kanade, L'Arc, and Therese mysteriously disappear. Certain it's just another event, Kizuna returns to his peaceful fishing-until he gets called upon for a different skill set.
Soon, he finds himself in the same frontier that took his sister. He takes up farming, mining, mentoring a disciple, and even keeping an exchange diary. Wait, whatever happened to his laid-back fishing life?