This song was used as an insert song in this film.

Three insert songs sung by the voice actors were used in three of the episodes.

This group sings many of the insert songs and ending themes.

"Mesmerise" was added as an insert song for the single "Can Do".

Japanese singer Aiko was also to provide the insert song to the movie.

There are also four additional insert songs, one for each heroine and was sung by their respective voice actresses.

This track is the insert song of By My Side.

The song was later used in the series proper as an insert song for episode 5.

The insert song and each of the ending themes are also sung by Rita.

It was released as a single, coupled with an insert song from the movie, on March 20, 2013.