Fateful...

 is a song by Morfonica.

It is one of the coupling tracks for their 3rd single, Harmony Day, which was released on October 6, 2021.

It was used as the ending theme song for.

Videos
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Live Performances

 * October 28, 2021: Amabile at Zepp Osaka Bayside
 * November 5, 2021: Amabile at Zepp Haneda