Melty Heart

 (メルティハート) is currently a four-member Japanese idol group originally formed with four members members in January 2018.

They debuted on March 10, 2018.

Current Members

 * Minami Ai (南歩唯; ) (Founding member)
 * Kabeya Marie (壁谷茉莉衣; ) (Founding member)
 * Sakurai Saki (桜井紗稀; ) (Joined November 28, 2020)
 * Kyoutani Hanon (京谷波音; ) (Joined November 28, 2020)

Former Members

 * sumile (Founding member; withdrew April 2019)
 * Yoshihara Mai (吉原舞; ) (Founding member; withdrew April 2019)
 * Shirakawa Yuka (白河優花) (Joined September 2019; left September 2019)
 * Asahina Minami (朝比奈南; ) (Joined September 2019; left November 2019)
 * Kanda Mikuru (神田未来; ) (Joined September 2019; left November 2019)
 * Tsukishima Hotaru (月島ほたる; ) (Joined August 2018; graduated December 30, 2019)
 * Ito Sanon (伊藤咲音; ) (Joined September 2019; graduated December 30, 2019)