The glittering spotlights. The sparkling, fluffy, cute outfits. The charming voices while dancing with bright smiles. Under the dazzling lights on the big city stage, these would be the mermaid idols who swim and dance freely underwater. But far from this big city, the girls once lived in the peaceful village of Parrel. These girls, who would not even imagine such a glittering future for themselves, are instead just raising a fuss over the snack cakes they are eating. This is the story of the cheerful daily life of mermaids who strive their hardest everyday.

After running away from the grim future that awaited her back in her home country, a young girl takes upon a new name and identity—inspired by the man who sacrificed his life to help her escape. Alongside her newfound companion, a talking motorcycle, the two find themselves a new home in the forest—where lives an elderly woman with an expertise in guns. Under the woman's care, the girl is trained in marksmanship and motorcycle handling among other various skills needed to survive. Although the girl is happy with her current life, her guilt regarding her savior's death continues to build within herself. She still feels responsible for her savior's death, and considers the consequences of using his name as her own. In doing so, she is denying her own identity and existence by trying to replicate another person's life, instead of living her own. Kino no Tabi: The Beautiful World - Nanika wo Suru Tame ni - Life Goes On. follows the journey of a young girl as she begins to come to terms with her new identity.

Waking up from a nap, Kino is relieved to see that a certain tower from afar is still proudly standing. Located in the heart of the Tower Country, the immensely tall tower stretches high into the sky, reaching seemingly infinite heights. The tower looks like something out of a dream, but the breathtaking construction is unmistakably real. Intrigued, the traveling partners Kino and Hermes—the talking motorcycle—journey to the tower to get a closer look at the building. Despite already being unbelievably tall, the tower is still being built by the townspeople to this day. Puzzled by the origins of the tower, Kino and Hermes ask around the town for information, but they fail to obtain any definitive answer. They continue to observe both the tower and the townspeople during their stay, hoping to understand the reasoning behind building a tower that requires so much effort. After all, there is always something to learn... even from the strangest of countries.

Hakuo Gakuin is on the verge of closing down due to students transferring to rival school Seishikan after mysterious injuries happening to students who refuse to transfer. To protect the school and its students they hire Kojiro, a member of the Fuma clan of ninjas. After finding out that Seishikan has enlisted the help of the Yasha ninja clan, who had been rivals with the Fuma for generations, Kojiro gains the help of his fellow Fuma ninjas. Even though they are hired to protect the schools, the two rival clans vow to destroy each other once and for all so that only one clan remains.