Saikō Genshu (New World Map Game)

The arrival of Saikō Michiko and Ayami Nanase's first child was news of international significance, and there was much celebration surrounding his birth. The first few years of his life were spent surrounded by state media; attention from the media never really died down, not even after his rise to power 26 years later. According to propaganda, Genshu first learned to walk at age two and to talk at two and a half years old. When he was seven, he was officially named the Deputy Chairman of the Patriotic Youth of the Fatherland, which effectively makes him a "crown prince" and his investiture ceremony took place on his seventh birthday, 8th January 987.

No official comprehensive biography on Saikō Genshu has yet been released. Therefore, the only known information on his early life comes from defectors and people who have claimed to witness him abroad, such as during his school attendance in Neubayern. Some of the information has been conflicting and contradictory, perhaps conflating him with his brother Saikō Orochi, who was also attending school in Neubayern around the same period. Nevertheless, there has been some consensus on information about his early life. North Orientalian authorities have stated that his birthdate is 8 January 963 AF, but South Orientalian intelligence officials believe the actual date is a year later.

Saikō Michiko's former personal chef, Ninigi Gouriki, revealed details regarding Saikō Genshu, with whom he had a good relationship, stating that he was favored to be his father's successor. Gouriki also claimed that Genshu was favored by his father over his elder brother, Saikō Mikasa, reasoning that Mikasa is too feminine in character, while Genshu is "exactly like his father". Furthermore, Gouriki stated that "If power is to be handed over then Genshu is the best for it. He has superb physical gifts, is a big drinker and never admits defeat." Also, according to Gouriki, Genshu smokes Yves Saint Laurent cigarettes, loves Johnnie Walker whisky and has a Mercedes-Benz 600 Sedan. When Genshu was 18, Gouriki described an episode where Genshu once questioned his lavish lifestyle and asked, "We are here, playing basketball, riding horses, riding Jet Skis, having fun together. But what of the lives of the average people?" On 15 January, 988 AF the South Orientalian news agency Yonhap reported that Saikō Michiko had appointed Saikō Genshu to be his successor.