THE iDOLM@STER MAD World Service [otoP]
- Nov 30, 2009#p01 Minami Kuribayashi "Tsubasa-wa(Wings are) Pleasure Line" feat. Haruka, Chihaya and Miki by otoP
- Dec 08, 2009#p03 KOKIA "The Power of Smile" Feat. Chihaya by otoP
- Jan 12, 2010#p03 KOKIA "Ai-no Melody(Melody of Love)" Feat. Chihaya by otoP
- Jan 27, 2010#p02 KOKIA "so much love for you" Feat. Ritsuko by OtoP
- Mar 13, 2010#p01 HORIE Yui "Chain of smile" feat. Yayoi by OtoP
- Nov 10, 2010#p03 SOPHIA "God Bless" feat. Chihaya by OtoP
- Feb 11, 2012#p01 TAMURA Yukari "LOVE ME NOW!" feat. Chihaya by OtoP
- Jun 26, 2012#p03 TAKAHASHI Yuu "Zecchou wa Ima" feat. Chihaya, Haruka and Yayoi by OtoP
- Jan 12, 2013#p01 nano.RIPE "Good bye" feat. Chihaya and 765PRO Allstars by OtoP
- Nov 03, 2013#p04 the dresscodes "Lolita" feat. Chihaya by OtoP
- Dec 30, 2013#p02 Rita "Itoshi Kotoba Itoshi Kokoro" feat. Chihaya by OtoP
- Mar 21, 2014#p01 TAKAHASHI Yu "Shounen de Are" feat. Chihaya by OtoP
- Jun 14, 2014#p02 MAKIHARA Noriyuki "Ashioto" feat. Chihaya by OtoP
- Aug 14, 2014#p03 IGUCHI Yuka "Ponytail" feat. Chihaya by OtoP
- Nov 08, 2014#p01 nano.RIPE "Tachyon" feat. Chihaya by OtoP
- Jan 07, 2015#p02 KISARAGI Chihaya "Just be myself!!" by OtoP
- Mar 09, 2015#p02 ABE Mao "Haiagare MY WAY" feat. Mio by OtoP