Proud of oneself

 is a song by Roselia.

The full version of the song will be included in the mini-album BanG Dream! Episode of Roselia Theme Songs Collection. It will be released on June 30, 2021.

It was used as the opening theme song for the movie BanG Dream! Episode of Roselia Part I: Yakusoku.

It was written by Spirit Garden, composed by Agematsu Noriyasu, and arranged by Fujinaga Ryutaro.

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