告白予行練習シリーズ
Yamako, Fujitani, Touko
Kokuhaku Yokou Renshuu series is based on the popular Vocaloid series by the same name, created by HoneyWorks. The song starts with a sudden confession from Natsuki, but due to her own embarrassment, she quickly dismisses it, saying it was just a rehearsal for her true confession.
