恋空予報 (Koizora Yohou)

Background
I seem to be in love today. "Koizora Yohou" is an original song by koyori featuring GUMI.

This song has entered the Hall of Fame. It is featured on koyori's album World on Color and Youthfull, as well as the compilation album GUMI Live! 2013 feat. Megpoid.