Artist: Ayaka Ohashi
Original Artist : 大橋 彩香
Title : Wagamama MIRROR HEART
Original Title : ワガママMIRROR HEART
Lyrics: Erica Masaki
Composition: Yusuke Kato
Arrangement: Takuya Sakai (Arte Refact)
Opening theme for the anime series, Masamune-kun no Revenge