In 2001, Cunimondo Takiguchi formed a band “流線形” (Ryusenkei). In 2003, Takiguchi, Takehiro Oshizuka, and Yuzo Hayashi released mini album “CITY MUSIC”, with guest vocalist Tomomi Sano. In 2006, group transformed to Takiguchi’s solo project, and released “TOKYO SNIPER” with singer Nica Eguchi (Hitomitoi). The name became popular among heavy listeners. In 2009, Ryusenkei and Atsuko Hiyajo released “NATURAL WOMAN”. In 2019, Ryusenkei/Hitomitoi released “Talio”, the soundtrack of “Talio Fukushu Daiko no Futari”, and break new ground. In 2022, released “incomplete” featuring Yasuyuki Horigome (former KIRINJI member). In 2024, singer-songwriter Sincere joined the group as an official member and changed the name to “RYUSENKEI”. The group restarts with the release of new album “ILLUSIONS” from revived Alfa Music.