Second season of Komi Can't Communication. On her first day attending the elite Itan Private High School, Shouko Komi immediately receives an overwhelming surge in popularity due to the unprecedented stoic beauty and refined elegance her classmates perceive her to possess. However, only Hitohito Tadano, an exceedingly average schoolboy who sits next to her, discovers that behind her bishōjo appearance, Komi has a severe communication disorder. Subsequently, Tadano resolves to help Komi reach her goal of 100 friends.

While reveling in the successful clinching of a prized vase for his collection, Yoshifumi Nitta, a yakuza member, is rudely interrupted when a large, peculiar capsule suddenly materializes and falls on his head. He opens the capsule to reveal a young, blue-haired girl, who doesn't divulge anything about herself but her name—Hina—and the fact that she possesses immense powers. As if things couldn't get any worse, she loses control and unleashes an explosion if her powers remain unused. Faced with no other choice, Nitta finds himself becoming her caregiver. To let her use her powers freely, Nitta asks Hina to help out with a construction deal, which goes smoothly. But while this is happening, a rival yakuza group covertly attacks his boss. To Nitta's shock, his colleagues later pin the blame on him! Tasked with attacking the rival group in retaliation, Nitta steels himself and arrives at their hideout. But suddenly, Hina unexpectedly steps in and helps him wipe out the entire group. As it turns out, Hina might just become a valuable asset to Nitta and his yakuza business, provided she does not use her powers on him first! And so the strange life of this unusual duo begins. [Written by MAL Rewrite]

High school student Misumi Makoto is called into a fantasy world by the god Tsukuyomi, in order to be a hero. However, powerful others in this world aren't as thrilled to have him there, and they kick him to the edge of the world just as Tsukuyomi declares that he must leave Makoto to find his own way. Now it's up to Makoto to find his own way!

After a momentous New Year's vacation and with Valentine's Day approaching, Sawako Kuronuma is beginning to get along with her classmates. However, now that Sawako has realized her romantic feelings for the popular Shouta Kazehaya, she grows hesitant toward giving him obligatory chocolates and decides to not give him any. In turn, Kazehaya, who likes Sawako, feels a distance between them. As February ends and April arrives, the second year of high school begins for Sawako. Luckily, she ends up in the same class as her friends Ayane Yano and Chizuru Yoshida, along with Kazehaya and his friend Ryuu Sanada, in addition to the newcomer named Kento Miura. When Kento develops an interest in Sawako, Sawako and Kazehaya's feelings for each other are put to the test.