Career
Tsugunaga joined Hello! Project in 2002 at the age of 10 with the other 15 Hello! Project Kids. In 2004, Berryz Kobo was created, and Tsugunaga was selected as one of the group"s members. In 2007, she was selected together with °C-ute member Airi Suzuki, and fellow Berryz Kobo member Miyabi Natsuyaki for the Hello! Project sub-group Buono!, which mainly produced opening and ending songs for the anime Shugo Chara!, but has now gone on to release more singles.
Hello! Project Kids
ZYX (2003–?)
Berryz Kobo (2004–2015)
H.P. All Stars (2004)
Buono! (2007–present)
Hello! Project Mobekimasu (2011)
Country Girls (2014-present)
Hello! Project Kids
ZYX (2003, 2009)
Berryz Kobo (2004–2015)
Buono! (since 2007)
Country Girls (since 2014)
Shuffle units
H.P. All Stars (2004)
Bekimasu (2011)
Hello! Project Mobekimasu (2011)
Concert units
Hello! Project Shirogumi (2005)
Wonderful Hearts (since 2006)
Other
Little Gatas (2004–2007)
Gatas Brilhantes H.P. (since 2007) (Reserve player).