After reliving the life of a high school student through the ReLIFE experiment, 27-year-old Arata Kaizaki cannot believe how quickly it has changed him. He has begun to see the world through a different perspective that he had completely forgotten as an adult. He has made friends and formed deep relationships with each one of them. However his support, Ryou Yoake, reminds him that the experiment is all an illusion; after his experiment ends, he will be forgotten by all of them. The experiment of another ReLIFE subject is also coming to an end. After spending two years with ReLIFE, Chizuru Hishiro has developed into a more open, more thoughtful person than she could have ever imagined. She has met people who have changed her life, her perspective, and ultimately her. However, now that their ReLIFE is coming to an end, will they be able to let go of the memories they have made?

Ririchiyo Shirakiin is the sheltered daughter of a renowned family. With her petite build and wealthy status, Ririchiyo has been a protected and dependent girl her entire life, but now she has decided to change all that. However, there is just one problem—the young girl has a sharp tongue she can't control, and terrible communication skills. With some help from a childhood friend, Ririchiyo takes up residence in Maison de Ayakashi, a secluded high-security apartment complex that, as the unsociable 15-year-old soon discovers, is home to a host of bizarre individuals. Furthermore, their quirky personalities are not the strangest things about them: each inhabitant of the Maison de Ayakashi, including Ririchiyo, is actually half-human, half-youkai. But Ririchiyo's troubles have only just begun. As a requirement of staying in her new home, she must be accompanied by a Secret Service agent. Ririchiyo's new partner, Soushi Miketsukami, is handsome, quiet... but ridiculously clingy and creepily submissive. With Soushi, her new supernatural neighbors, and the beginning of high school, Ririchiyo definitely seems to have a difficult path ahead of her.

One year after the events at the Sanctuary, Subaru Natsuki trains hard to better face future challenges. The peaceful days come to an end when Emilia receives an invitation to a meeting in the Watergate City of Priestella from none other than Anastasia Hoshin, one of her rivals in the royal selection. Considering the meeting's significance and the potential dangers Emilia could face, Subaru and his friends accompany her. However, as Subaru reconnects with old associates and companions in Priestella, new formidable foes emerge. Driven by fanatical motivations and engaging in ruthless methods to achieve their ambitions, the new enemy targets Emilia and threaten the very existence of the city. Rallying his allies, Subaru must give his all once more to stop their nefarious goals from becoming a concrete reality.

Otonokizaka High School is in a crisis! With the number of enrolling students dropping lower and lower every year, the school is set to shut down after its current first years graduate. However, second year Honoka Kousaka refuses to let it go without a fight. Searching for a solution, she comes across popular school idol group A-RISE and sets out to create a school idol group of her own. With the help of her childhood friends Umi Sonoda and Kotori Minami, Honoka forms μ's (pronounced muse) to boost awareness and popularity of her school. Unfortunately, it's all easier said than done. Student council president Eri Ayase vehemently opposes the establishment of a school idol group and will do anything in her power to prevent its creation. Moreover, Honoka and her friends have trouble attracting any additional members. But the Love Live, a competition to determine the best and most beloved school idol groups in Japan, can help them gain the attention they desperately need. With the contest fast approaching, Honoka must act quickly and diligently to try and bring together a school idol group and win the Love Live in order to save Otonokizaka High School.