Manmaru goes to ninja school at Nenga, where foxes and raccoons study the art of assassination under a bear ninja master. He is soon thrown in to local rivalry between the Nenga school, the Koga (monkeys), and the Iga (dogs), as well as facing temptations from the Dobe, a group of dropouts from the Nenga. (Source: The Anime Encyclopedia)

During their last summer of elementary school, four friends decide to undertake a test of courage at their local graveyard. Before the test begins, Haruka Kaminogi makes a last effort to pull Yuu Gotou away from his controlling mother. While doing so, Haruka suddenly has a strange vision of blue snow followed by the appearance of an imposing silver-haired man. Later, a similar vision occurs at the graveyard to both Haruka and her friends before they try to escape what they assume are ghosts. Unbeknownst to the children, the people who appeared before them are Dragon Soldiers: an elite military group from a dimension known as La'cryma. The soldiers have traveled to this dimension to secure the Dragon Torque—an entity they believe to be their last hope for survival. However, both the Dragon Soldiers and Haruka are shocked to learn that the Dragon Torque is Haruka herself. She attempts to escape from the Dragon Soldiers as she finds her own last ray of hope—the strange silver-haired man who claims to be another version of Yuu himself.

The carefree journeys of the four girls continue! As their fleeting yet eventful summer becomes a distant memory, the arrival of fall signals a new school year with limitless opportunities. Even as the four girls return to their peaceful routine, the appearance of new faces enlivens the anything but exciting rural life of Asahigaoka. Non Non Biyori Nonstop leisurely walks back into the lives of Hotaru Ichijou, Komari Koshigaya, Natsumi Koshigaya, and Renge Miyauchi as they fully embrace their rural lifestyles and turn anything they find into nothing but fun!

Shinichi Chiaki is a first class musician whose dream is to play among the elites in Europe. Coming from a distinguished family, he is an infamous perfectionist—not only is he highly critical of himself, but of others as well. The only thing stopping Shinichi from leaving for Europe is his fear of flying. As a result, he's grounded in Japan. During his fourth year at Japan's top music university, Shinichi happens to meet Megumi Noda or, as she refers to herself, Nodame. On the surface, she seems to be an unkempt girl with no direction in life. However, when Shinichi hears Nodame play the piano for the first time, he is in awe of the kind of music she creates. Nevertheless, Shinichi is dismayed to discover that Nodame is his neighbor, and worse, she ends up falling head over heels in love with him.