Ono Erena is a former member of the Japanese idol group AKB48. She was in Team K and her talent agency was Ohtapro. She was also part of subgroups "Honegumi from AKB48", and "ICE from AKB48". Her nickname is Erepyon.
Ono was also one of the focal members of Team K, taking part in most group activities.
On AKB48's concert at the Yoyogi National Gymnasium on a Sunday in July 2010, it was announced that Team K member Ono Erena would be graduating from AKB48 to study acting abroad. Ono Erena graduated from AKB48 on September 27, 2010 in a Team K theatre performance. Her blog was closed soon after on 4 November.
She opened a new blog again on July 27, 2011 and on early October 2011, it closed again. On October 30, 2011 finally she opened a new blog.
Ono said that she was going to study in London, but then decided to change her mind and stay in Tokyo. She stated that the reason because she can not live outside the entertainment world. Now she is working under LesPros Entertainment and training hard to become an actress.
In 2012, It was announced that Ono would have her Solo Debut with her Debut single, "Erepyon".
AKB48 released "Aitakatta" from the major label "DefStar Records". In this song, 20 members were selected from the 36 members in Team A & Team K. Ono was one of the selected members.
Appeared in the 58th Annual Kohaku Utagassen.