As spring vacation comes to a close, a new school semester approaches. Deciding to make the most of the remaining holiday, Ayuko Uehara takes a stroll into her neighborhood and stops by a small cafe. However, her peaceful day is abruptly disturbed when a girl clumsily bumps into her. Left puzzled by the encounter, Ayaku is even more surprised when she meets them again as freshmen at the same high school she attends. Recognizing her from the store, the girls introduce themselves as Kanaka Amaya and Saki Iwasawa, and the three quickly become friends. As they go through their daily lives as high school girls, the trio's distinct personalities—Kanaka's happy-go-lucky attitude, Saki's tomboyish behavior, and Ayuko's easygoingness—are sure to make every mundane school day filled with silly and fun interactions.

In the beginning, God created the heavens and the earth. He also sought after a wide variety of animals to populate the planet. However, he felt that it was too tiresome to think of new ideas within his criteria. To address this problem, God appointed an organization—the Heaven's Design Team—to do the work instead! Shimoda is a newly-hired angel who serves as the mediator between God and the design team. As he steps into his role, he witnesses his coworkers conceive interesting ideas for many unique life forms according to God's desires. From giraffes and snakes to birds, anteaters, and everything in between, the possibilities for different animal species are endless!

Rinne Rokudou has bigger problems than going to school—namely, helping spirits pass over to the next life. Because of this responsibility, he often finds himself short on money and struggles to buy his necessities: food, clothes, and exorcism tools. Sakura Mamiya has been able to see ghosts since she was little. She hoped she would outgrow it, but even after starting high school, nothing has changed. To make matters worse, the first time her ever-absent classmate, Rinne, shows up for school, only Sakura can see him. She assumes, as anyone would, that he is a ghost. However, to Sakura's surprise, Rinne proceeds to attend school like normal the next day. Kyoukai no Rinne chronicles Sakura's journey as she learns of Rinne's true nature and the existence of a hidden supernatural world.

The unforeseen outcome of Iona Urazoe's fan gathering continues to weigh heavily on Ruuko Kominato. Having uncovered the truth behind being a Selector, Ruuko and her friends Yuzuki Kurebayashi and Hitoe Uemura hesitate to partake in the battles that may ruin the lives they have come to cherish. The same cannot be said for Chiyori, a fellow Selector who remains oblivious to the consequences of losing despite all warnings. As she tries to convince Chiyori out of her cruel fate, Ruuko learns more about a WIXOSS novel—which may reveal the secrets of LRIGs and the Selector battles' very existence. Meanwhile, Akira Aoi and her model career have rebounded thanks to Iona, who is now possessed by Ulith. With her life back on track, Akira pledges to assist Ulith in any way she can. Unbeknownst to her, Ulith is scheming to utilize a familiar LRIG to not only torment Ruuko but also prevent the latter's wish from ever being fulfilled.