MERAHEART was a Korean live idol duo, consisting of AIRI and CHIHIRO. They had their official live debut on October 11, 2020 on the “IDOL ARENA”. On November 1, 2020, MERAMERAHEART announced that they are looking to recruit new members and opened applications. Later, on December 31, 2020, MERAMERAHEART announced the graduation of all two members. They recruited as MERAMERAHEART with 3 brand new 2nd generation members in Spring, 2021.