Akuma No Riddle Ost - Takechi Otoya
Male! Takechi Otoya — Concentration (Akuma No Riddle ED 3) 04:01
Akuma no Riddle OST - Takechi Otoya — Concentration (Instrumental) 04:00
Numakura Manami as Takechi Otoya — Concentration (Akuma no Riddle) 04:00
Akuma no Riddle ED 3 — Concentration 01:30
Takechi Otoya (CV. Numakura Manami) — concentration 04:01