If only we had met at a different time. I wonder if this drama had a HappyEnd. I am an extra for that person. I wanted to be the main character of your story. A group of 150 creators who have produced many hit songs based on Co-Writing. They have released many songs from Kis-My-Ft2/Kanjani Eight/Amuro Namie/Keyakizaka 46/=LOVE/YUKI/Da-iCE, etc. On 2021/10/31, they started distributing "The coolest song now" selected from many songs by the creators of the group. EXTRAS", the fifth release, is an R&B song full of sadness from a woman's point of view, featuring the cool voice of Mai Shiroi and the female writer Chiaki Nagasawa and Saori Nagano, who have produced many songs.