Hiroshi Fujimoto is a young manga artist living in Tokyo's Tokiwa-so apartment complex during the 1950s. He shares his living space and creative challenges with fellow residents, notably Motoo Abiko. Their close partnership forms the influential manga duo Fujiko Fujio, central to his character.

He navigates significant professional hurdles, enduring financial hardship and repeated editorial rejections. Similar setbacks mark his personal life, particularly in romantic pursuits. Despite these persistent obstacles, he maintains a steadfast dedication to his craft.

The narrative highlights his collaborative spirit within the Tokiwa-so community, where mutual support among struggling artists builds collective resilience. A key scene depicts his creative process: frustration leads him to discard a drawing of Doraemon, only for the character Q-taro to retrieve it, symbolizing the enduring value of his creations.

His personal journey mirrors the collective arc of Tokiwa-so's residents, tracing a path from initial obscurity to eventual professional recognition achieved through shared determination and artistic camaraderie.