Hanachirasu

Hanachirasu is set in a parallel timeline where nuclear weaponry was never developed. As such, Japan continued to fight through World War II, ending aggressions only when Hokkaido and Kyushu were occupied by Russia and America, respectively. The game itself takes place in early 21st century Tokyo, which has been transformed into a haven for Japanese culture thanks to the nationalistic ideals of the charismatic Ishima Kaigen. (vndb.org)