Yoko Hikasa - Utsukushiki Zankoku Na Sekai

Yoko Hikasa - Innocent

Yoko Hikasa - Courage Soul

Yoko Hikasa - Don't Say "Lazy"

Yoko Hikasa - Fudepen ~Ballpen~

Yoko Hikasa - Girls In Wonderland

Yoko Hikasa - Hakanai Kiss de Owarasete

Yoko Hikasa - Our Magic

Yoko Hikasa - Sakuragaoka Joshikou Tou Kakkou Kouka [rock Ver.]

Yoko Hikasa - Super Stream

Yoko Hikasa - Tsubasa Wo Kudasai

Yoko Hikasa - Yamato Nadeshiko Education

Yoko Hikasa - Aozora No Monologue

Yoko Hikasa - Best Partner

Yoko Hikasa - Fuwa Fuwa Time

Yoko Hikasa - Heart Goes Boom !!

Yoko Hikasa - Hello Little Girl

Yoko Hikasa - Houkago Tea Time

Yoko Hikasa - Ichiban Ippai

Yoko Hikasa - Light Of Hope

Yoko Hikasa - Listen!!

Yoko Hikasa - My Love Is a Stapler

Yoko Hikasa - No, Thank You!

Yoko Hikasa - Ohayou, Mata Ashita

Yoko Hikasa - Owaranai Uta

Yoko Hikasa - Pilgrim

Yoko Hikasa - Pure Pure Heart

Yoko Hikasa - Samidare 20 Love

Yoko Hikasa - Seishun Vibration

Yoko Hikasa - Singing!

Yoko Hikasa - Stand Up! Ready!!

Yoko Hikasa - Unmei Wa Endless!