- In the manga, Takuto disguised himself as one of the judges at the audition.
- In the manga, after her talk with Dr. Wakaoji, Mitsuki told her grandmother that she wanted to go to the singing audition. Grandma then ripped up Mitsuki's letter that said that she passed the preliminaries.
- When Meroko is saying how Takuto belongs to her and not Mitsuki, Meroko's gloves disappear.
- Takuto's and Meroko's mouths do not move when they shout "Negi Ramen!"
- Kana as Madoka Wakamatsu
- Chieko Honda as Meroko Yui
- Kazuko Sugiyama as Fuzuki Koyama
- Myco as Mitsuki Koyama/Fullmoon
- Ryohei Kimura as Eichi Sakurai
- Teruaki Ogawa as Keiichi Wakaoji
- Yasuo Saitou as Takuto Kira
- Takayuki Kondo as Judge
- Yoshinobu Kaneko as Judge
- Yoshikazu Nagano as Judge
- Tomoki Nakao as Auditionee
"My Promise to Eichi"