#1: "Gyun to Love Song (ギュンとラブソング)" by Ren Kaidou (Junko Minagawa), Haru Kaidou (Tomoaki Maeno) (ep 1)
#2: "Gyun to Love Song (ギュンとラブソング)" by Kaidou Brothers [Ren Kaidou (Junko Minagawa), Haru Kaidou (Tomoaki Maeno), Aki Kaidou (Yoshitsugu Matsuoka), Shima Kaidou (Takuma Terashima)]