She congratulated her younger sister Ota Ayaka for her promotion! https://twitter.com/Riopyon1231/status/800330661592711173
Lovely Doll's Yoake Mae, Niji ga Sasu MV. Riona still has good screentime. if the video does not show watch the video here
She will release her photobook titled "Riona Love" on January 7, same day as her birthday live. https://lineblog.me/lovelydoll_official/archives/9315401.html
Reaction to Sayanee's graduation announcement. https://twitter.com/Riopyon1231/status/1023902815352045569
She congratulates Okita Ayaka on her graduation. https://twitter.com/Riopyon1231/status/1038305571831595008
As a 1st gen member of NMB, she participated on Sayanee's graduation concert https://twitter.com/Riopyon1231/status/1056144790058754048