[5][6] On 5 October 2012, Yokoyama announced that she was creating a new idol group named Akishibu Project with the aim of "merging the cultures of Shibuya with Akihabara.
Originally composed of Rinahamu and two other members, the group expanded and held regular performances at Twinbox Akihabara.
[10] On 15 September 2014, she once again changed her stage name to Ichigo Rinahamu and held a concert at AkibaArena, a maid café, where she announced the release of a self-titled single on 15 October.
[15][16] Ichigo Rinahamu also created a short-lived band named Strawberry Syndrome (ストロベリー症候群), which was founded on 23 April 2016.
[17] The group had a total of seven members and produced one single, a remake of the vocaloid song "Melancholic" (メランコリック) by Junky, released on 28 June 2016.