Arisunime — The JCC Transfer Exams Arc is the fourth major story arc in Sakamoto Days, spanning manga chapters 55 through 72 (collected in volumes 7 to 9) and beginning with episode 16 of the anime adaptation.
In this arc, Sakamoto and Shin infiltrate the JCC (Japan Assassins Club) by posing as students taking the entrance exam, motivated by their need to uncover more information about Slur’s true identity and activities . A new key visual and promotional trailer have been released to herald the arrival of this arc in the anime, showcasing Sakamoto, Shin, and other newcomers including Mafuyu, Akira, Kanaguri, Toramaru, Kaji, and Shinaya.
This arc marks a significant turning point for the series, as the story begins to shift tone—retaining slice-of-life moments but putting them aside in favor of more focused plot development and intense action sequences . The challenges within the exam generate engaging confrontations: Shin faces off against Mafuyu; political and physical clashes erupt involving Sakamoto, Akira, Jay Erk, and others; and confrontations escalate with characters like Toramaru, Kaji, and Shinaya/Gaku ).
Among the new characters introduced are Rion Akao (Sakamoto’s old friend), Akira Akao (Rion’s niece), Jay Erk, Mafuyu Seba, Kanaguri (a legendary filmmaker and Order member who oversees the exam), Nao Toramaru, Joichiro Kaji, Shinaya, and Carolina Reaper .
Moreover, the arc advances the overarching narrative by divulging key information: Slur’s real identity is revealed to be Kei Uzuki, a former classmate of Sakamoto from his JCC days, and the stakes around Slur’s motives and the structure of the JCC become clearer.***
