The group featured voice and stage actresses from various talent agencies and were promoted through the online radio program A&G Girls Project Trefle.
Nanami Kashiyama, Eri Suzuki, Karin Takahashi, and Ayumi Takamune were added as members in April 2014.
[1] Trefle released their first album, Anison Kamikyoku + ChainChro on October 23, 2013,[2] which also featured a collaboration with Chain Chronicle.
[3][4] In April 2014, Nanami Kashiyama, Eri Suzuki, Karin Takahashi, and Ayumi Takamune were added as members.
"[7] On July 29, 2016, the official website announced that after discussion with the members, Trefle would disband after their final concert on October 5, 2016.