Tsumugi Kotobuki

- Don't say "lazy"
- Don't say "lazy" - EP · 2009
- Cagayake!GIRLS
- Cagayake!GIRLS - EP · 2009
- Sweet Bitter Beauty Song
- Don't say "lazy" - EP · 2009
- Happy!? Sorry!!
- Cagayake!GIRLS - EP · 2009
- Diary wa Fortissimo
- "K-On" Image Song Kotobuki Tsumugi - EP · 2010
- Don't say "lazy" (off vocal)
- Don't say "lazy" - EP · 2009
- Humming Bird
- "K-On!" Image Song Kotobuki Tsumugi - EP · 2009
- Sweet Bitter Beauty Song (off vocal)
- Don't say "lazy" - EP · 2009
- Dear My Keys - Kenban no Maho -
- "K-On!" Image Song Kotobuki Tsumugi - EP · 2009
- Yasei no Jounetsu
- "K-On" Image Song Kotobuki Tsumugi - EP · 2010
- Come with Me!! (Tsumigi Ver.)
- "K-On" Image Song Kotobuki Tsumugi - EP · 2010
- Happy!? Sorry!! (off vocal)
- Cagayake!GIRLS - EP · 2009
- Diary wa Fortissimo (Live Event - Come with Me!! - Ver.)
- TV Anime "K-On!" (Live Event - Come with Me!! -) [Standard Edition] · 2011

"K-On" Image Song Kotobuki Tsumugi - EP

"K-On" Image Song Kotobuki Tsumugi - EP

2010
"K-On!" Image Song Kotobuki Tsumugi - EP

"K-On!" Image Song Kotobuki Tsumugi - EP

2009
Cagayake!GIRLS - EP

Cagayake!GIRLS - EP

2009
Don't say "lazy" - EP

Don't say "lazy" - EP

2009

Hirasara Ui (CV: Madoka Yonezawa)
Ritsu Tainaka
Manabe Nodoka (CV: Chika Fujito)
Suzuki Jun (CV: Yoriko Nagata)
Nakano Azusa (CV: Ayana Taketatsu)
Mio Akiyama
Hirasara Yui (CV: Aki Toyosaki)
Death Devil
Azusa Nakano
DEATH DEVIL