Maigahara Senior High School is a prestigious institution renowned for producing many talented musicians over the years. True to the school's reputation, an intriguing rumor is widespread among its students: whosoever provides a spectacular performance at the upcoming festival will receive extra credits. Serina Akesaka is an outgoing first-year student on the verge of failing her classes. After recalling the circulating rumor, Serina decides to recruit four students—Nazuna Tennouzu, Aliciana Ogata, Hakobe Naru, and Nagi Kobotoke—to form a band with her. As these five passionate girls start their journey together, the music they will soon produce is bound to touch everyone's hearts and leave an everlasting impact.

Ichirou Inuyashiki is a 58-year-old family man who is going through a difficult time in his life. Though his frequent back problems are painful, nothing hurts quite as much as the indifference and distaste that his wife and children have for him. Despite this, Ichirou still manages to find solace in Hanako, an abandoned Shiba Inu that he adopts into his home. However, his life takes a turn for the worse when a follow-up physical examination reveals that Ichirou has stomach cancer and only three months to live; though he tries to be strong, his family's disinterest causes an emotional breakdown. Running off into a nearby field, Ichirou embraces his dog and weeps—until he notices a strange figure standing before him. Suddenly, a bright light appears and Ichirou is enveloped by smoke and dust. When he comes to, he discovers something is amiss—he has been reborn as a mechanized weapon wearing the skin of his former self. Though initially shocked, the compassionate Ichirou immediately uses his newfound powers to save a life, an act of kindness that fills him with happiness and newfound hope. However, the origins of these strange powers remain unclear. Who was the mysterious figure at the site of the explosion, and are they as kind as Ichirou when it comes to using this dangerous gift?

Seto Ichitaka has a crush on Yoshizuki Iori, a girl in his class who has become so popular she now has her own fan club at school. But only a miracle could make him be with her, since the day he first saw Iori-chan, Ichitaka has been too shy to even talk to her. This miracle happened and now he and Iori are working together on the Freshmen Welcoming Party. It seems that things start to look bright for Seto, but then a special childhood friend is coming for a visit... (Source: ANN)

While Ichika Orimura departs to visit Kuramochi Engineering's laboratories, an unidentified enemy hacks into IS Academy's core and cripples its systems. To fend off the attack and repair the damage, his older sister Chifuyu enlists Ichika's harem: Houki Shinonono, Cecilia Alcott, Huang Lingyin, Laura Bodewig, and Charlotte Dunois. Together, they utilize virtual reality to confront their opponents in IS Academy's network. Unbeknownst to the girls, a piece of malware named World Purge is activated when they enter the digital realm. The program forces them into fabricated realities, where they each experience an ideal romantic version of their bond with Ichika. Once Ichika returns to IS Academy, it is up to him to rescue the five girls and wake them from this virtual reality.