[5] In 2009–2010, she was in her agency Stardust Promotion's cheerleader-themed idol group Mini Cheer Bears [ja].

[citation needed][6] In February 2010, she joined the girl idol group Shiritsu Ebisu Chugaku.

[4] In 2013, she starred in the horror movie The Joker Game: Escape [ja] alongside fellow Shiritsu Ebisu Chugaku member Hirono Suzuki (who played the main protagonist).

[9] Matsuno was unable to perform at her group's concert the day before due to a health issue and was taking medical treatment at home in Tokyo.

[13] Sankei Sports reported on February 10 that according to Rina Matsuno's agency (Stardust Promotion), "lethal arrhythmia" is suspected as the cause of her death.