The story is based on the life of a japanese composer named Yuji Koseki from Fukushima in the Showa Era.
In 1909, a long-awaited baby boy was born to a family which has run a dry goods store for generations in Fukushima Prefecture. He would later become the talented composer Koyama Yuichi who wrote many famous songs. Although Yuichi was brought up as the heir of the business, he was rather dreamy and considered a child with no redeeming traits by the people around him. However, when he encountered music, it sparked joy and unleashed his gift in composing music through self-study. As a youth, Yuichi secretly put his name down for an overseas songwriting competition. This would change his destiny. He won runner-up for the song he entered for the competition. As a result, he got to know a female student who wanted to be a singer. Despite the long distance between them – Fukushima and Toyohashi – the two of them tied the knot. When they came to Tokyo, they met all sorts of people and weathered a dark period to produce a number of hit songs. However, war broke out and Yuichi had to compose wartime songs at the army’s request. It pained him that young men died in battle after singing the songs he had written. After the war, the country began to recover amid the chaos. The couple made a new era of music in an attempt to encourage the wounded through the power of music.
Saigo Takamori, the hero of the Meiji Restoration, was born to a poor, low-ranking samurai family in the Satsuma domain (present day Kagoshima Prefecture). His simple honesty caught the attention of its charismatic feudal lord of Satsuma, Shimazu Nariakira. Nariakira’s assertion that the love of people is what will enrich and strengthen the nation captivated Saigo who took on Nariakira’s secret mission and eventually became a key person for Satsuma. Not a portrait of him survives today and much of his life is a mystery. He is a man who was twice exiled and thrice married. He overthrew the Tokugawa Shogunate with exceptional bravery and action. Although he accomplished the restoration, he lost his life in a fight with the new Meiji government.
Based on the novel "Sego Don" by Hayashi Mariko.
In the summer of 2015 in Tokyo, Japan. Ryoichi dreamed of becoming a punk rocker when he was younger but became a timid salaryman at a musical instrument parts company. He has feelings for her, but he can't tell her how he feels..
One day, he has a fateful meeting with a turtle on the rooftop of a department store. He names the turtle Pikadon and he adores it, but his co-workers laugh at him. Ryoichi throws Pikadon into the toilet. He regrets what he did. The turtle though goes through sewerage and meets an old man who lives underground. Something then happens.
