1: "A Little Pain" by Olivia inspi' Reira ~Trapnest~ (eps 11.5 (for TV broadcast))
2: "Starless Night" by Olivia inspi' Reira ~Trapnest~ (eps 21.5 (for TV broadcast), DVD: eps 11.5, 21.5)
3: "Kuroi Namida" by Anna inspi' Nana ~Black Stones~ (eps 36.5 (for TV broadcast and DVD))