Rose Guns Days: Season 1

Rose Guns Days is a visual novel where the events takes place in Japan after end of World War II. Japan was split into China and U.S. divisions. Because of immigrants, which entering the country from two sides, the Japanese people became a minority. Some people are unwilling to accept a new system and begins secretly gather a strength to change it. All begins to change when main protagonist named Leo Shishigami meets Rose Haibara in spring of 1997.