Even though it has been a year since the Iwatobi High School Swim Club has been created, new members have yet to join the club. Now that Haruka Nanase and Makoto Tachibana are senior students, along with their younger friends Nagisa Hazuki and Rei Ryuugazaki, they have to find a way to attract new members. If not, the club will be forced to close the following year due to a lack of membership. Meanwhile, with impending graduation, it is also time for the seniors to decide their plans for the future. Unlike their friend Rin Matsuoka, the new captain of Samezuka Academy Swim Club who is determined to fulfill his dream of being a professional swimmer, Haruka and Makoto are unsure about what career path they want to take. Further problems arise when an old friend of Rin's, Sousuke Yamazaki, comes to the city to study at Samezuka Academy; the recently scouted swimmer's arrival causes tension in the relationship among him, Rin, and Haruka. [Written by MAL Rewrite]

As always, Shi Miao is tired of her brother's ridiculous antics, and Shi Fen can only hope to escape the clutches of his violent sister. With their friends and classmates in tow, the two continue their dysfunctional relationship as reluctant but devoted siblings. [Written by MAL Rewrite]

After escaping certain death, Kei Nagai and his new companion Kou Nakano plot revenge on Satou, their fellow Ajin who is hellbent on world domination. As Satou embarks on a string of public executions, the human race rushes to come up with a solution to stop the immortal villain. Kei discovers unlikely allies in the form of two former adversaries: high-ranking government official Yuu Tosaki, whose extensive research on Ajin gives him a tactical advantage in the fight against Satou, and Tosaki's Ajin assistant Izumi Shimomura. As his faction continues to gather allies, Kei races against time to put a stop to Satou's crusade before it brings about an end to civilization as he knows it. [Written by MAL Rewrite]

Due to his love for small, cute things, Souta Takanashi cannot turn childlike Popura Taneshima down when she recruits him to work for Wagnaria, a family restaurant located in Hokkaido. Takanashi takes particular joy in doting on the older Popura, which only fuels her complex over how young she looks. He also quickly learns he must stay on his toes once he meets the rest of his colleagues, including the katana-wielding floor chief Yachiyo Todoroki, the intimidating head chef Jun Satou, the dangerously well-informed and subtly sadistic sous chef Hiroomi Souma, the adamantly lazy manager Kyouko Shirafuji, and the waitress Mahiru Inami who has a "painful" fear of men. Powered by an eccentric cast, Working!! is a unique workplace comedy that follows the never-dull happenings within the walls of Wagnaria as Takanashi and his co-workers' quirky personalities combine to create non-stop antics, shenanigans, and hilarity. [Written by MAL Rewrite]