Live action TV
Description
Occho, whose real name is Choji Ochiai, is a central character in 20th Century Boys. He is also known by the nickname Otcho and, in his adult years, by the alias Shogun. As a boy, he was one of Kenji Endo's closest friends and served as a co-leader of their childhood group. He was responsible for designing the symbol that the group adopted as its mark, a detail that becomes highly significant later, because the same symbol is eventually claimed by the organization called Friend.

As a child, Occho was just as impulsive and hot-headed as Kenji. The two boys were inseparable and constantly competed with each other to see who was better, and this rivalry helped define their friendship. During these early years, he was also remembered by a nickname referring to his large eyes.

Occho's adult life is marked by loss. He becomes a salaryman, but after the death of his son and the collapse of his family life, he abandons Japan and disappears into Southeast Asia, spending time in places such as Tibet and Thailand. During this period he becomes involved in the dealings of the Friend organization. Operating under the alias Shogun, he takes on dangerous work, including rescuing kidnapped tourists, and keeps himself in prime physical shape, escaping certain death on numerous occasions. When a local drug boss allied with Friend begins hunting him, he receives a plea from Kenji for help and decides to return to Japan, rejoining the fight on the eve of the catastrophe that Friend has planned for the end of the year 2000.

Occho is not the most talkative member of Kenji's group, but he is the kind of person who can be relied on in a difficult situation. His years of hardship have made him hardened and highly capable, yet his loyalty to his childhood friends remains a strong motivating force. His motivations are shaped by personal loss and by the unsettling fact that the symbol he created as a boy was twisted and reused by the organization the group eventually opposes, which makes the conflict deeply personal for him.

In the story, Occho is one of the most capable members of the resistance that forms against Friend. His relationship with Kenji is central to his role, as the former childhood friends remain bound by deep trust and shared history despite years of separation. Because he designed the original symbol, his connection to the mark also makes him a figure of suspicion at various points, since the Friend organization's use of it implicates everything tied to its origins.

His development moves through several clear stages: a competitive and energetic boy, a disillusioned salaryman broken by family tragedy, a hardened survivor and freelance rescuer in Southeast Asia, and finally a key ally in the fight against Friend. His notable abilities include exceptional physical conditioning, combat and survival skills, and the resourcefulness gained through years of dangerous work abroad. His creation of the group's symbol also gives him a unique and ironic connection to the story's central emblem, as the boyhood gesture he invented is transformed into the sign of the movement he later fights.