告白予行練習-another story- (Kokuhaku Yokou Renshuu -another story-)

Background
The song tells the events of "Kokuhaku Yokou Renshuu" from Setoguchi Yuu's perspective.

This song has entered the Hall of Fame on NND and reached over 1,100,000+ views on YT. A version sang by Yuu's voice actor,, is featured in HoneyWorks' album Boku Ja Dame Desu Ka?.

Publications
A novel based on the song, called "Confession Rehearsal", has also been written.