Experienced voice actor Yasumi Utatane works hard to maintain her image as a pure and innocent idol to please her fans, even as she struggles to find more jobs in the industry. But Yasumi has a secret—she is actually Yumiko Satou, a high school girl who prefers loose clothes and flashy jewelry, a complete contradiction to her false professional persona. As Yasumi, Yumiko is finally offered an exciting opportunity to do a radio program alongside another up-and-coming voice actor she admires: Yuuhi Yuugure. In Yumiko’s eyes, Yuuhi’s cute looks and talented acting embody what a voice actor should be. As soon as they are introduced at the recording studio, however, Yumiko realizes that Yuuhi is actually her gloomy classmate, Chika Watanabe. Together, the pair commit to their radio program and slowly begin to open up. In supporting each other, Yumikoi and Chika gradually learn to be true to themselves.

Kivotos is a federal megalopolis comprising thousands of schools and is led by the General Student Council (GSC), which acts as its governing body. Ironically, despite being an academy city, Kivotos is rife with gun violence, and all students wield firearms as part of their everyday lives. As if the crisis in Kivotos was not enough, the GSC president is nowhere to be found. Fortunately, before her sudden disappearance, the GSC president enlisted the help of Sensei—a teacher who is most likely the only one in Kivotos—to support students in their time of need. Sensei's first course of action is to assist Abydos High School, a once prestigious academy now with merely five students in attendance. These remaining students are doing everything they can to pay their academy's crippling debt of almost one billion yen.

As introverted colleagues at a travel agency in Tokyo, Takuya Oohara and Rika Honjouji both cherish their happily single lives. After work, home is where they feel most at ease: Takuya unwinds with his cat, while Rika studies various maps. However, an uncertain future looms over their treasured tranquility when their company plans to open a branch office in Alaska within one year and transfer an unmarried employee there. During a day off, Takuya and Rika accidentally meet and, despite never having spoken before, open up to each other about their relocation fears. Feeling encouraged by Takuya facing the same predicament, Rika suddenly proposes a daring solution—to pretend to be engaged for 365 days. Takuya accepts, but little do the two know that the path to marriage may, in many ways, change forever the very lifestyles they struggle to preserve.

Zunko Tohoku can make any mochi into delicious zunda mochi by shooting it with her Zunda Arrow. Along with Kiritan Tohoku, Itako Tohoku, Usagi Chuugoku, Metan Shikoku, and Sora Kyushu, she enjoys eating zunda mochi while being full of happiness. Chanko Ooedo conversely leads the Natto Factory along with her companions Tsurugi Chubu, Shinobi Kansai, Awamo Okinawa, and Meron Hokkaido. Even though zunda and natto use the same type of bean, the edamame used in zunda and the soy beans used in natto are harvested at different times, with edamame being harvested first. As a result, the members of the Natto Factory are afraid of a decrease in the quantity of soybeans harvested. Chanko sends Awamo Okinawa and Meron Hokkaido to Zunko's house to assassinate her, but a third power makes their appearance. (Source: ANN)