Otsu / 夜想 -kaede Remix- Otsu / 神薙 -DINING-KITCHEN STONE Remix- Otsu / 空に光る -R9 Remix- Otsu / destroyer -Nacky Remix- Otsu / 青空 anthelion2006 -ZTS Remix- Otsu / 鳥の詩 -Cosmic Seekers Remix- Otsu / Farewell song -Tsukasa Remix- Otsu / favorite loop -Groovetune Remix- Otsu / harmony with sorrow -daydream Remix- Otsu / Psychedelic Drive -garbageman Remix- OTSUBONE Otsugaru Wave Otsuka Otsuka Rei, Aso Natsuko, Kawase Yuri / Move On!! Otsuka Rei, Aso Natsuko, Kawase Yuri / Move On!! (off vocal ver. Otsuka Rei, Aso Natsuko, Kawase Yuri / Pink Generation (Chisame, otsukai ari-san otsukai arisan Otsukai arisan おつかいありさん Otsukaiari-san OTSUKAIARISAN Otsukaitachi No Tasogare Otsukare Sama Otsukaresama Otsuki Sama ni Hashigo Otsuki sama with Mayutan Otsukisama Ikutsu OTSUKISAMANO KAGE Otsukisamano kage (Tintarella di luna) Otsumu Kon! Kon! Otsustusvime Otsutstvyye Otsuya & Okano's Duet "Our baby Otsuya's Aria I'm Yours and only yours Otsuya's Aria The remains of our love