Choku Mune ni Fortissimo

 is the second collaboration single by Task have Fun and Tsunku, as Tsun♂Tasu♀. It was released on April 28, 2021.

Tracklist

 * 1) Choku Mune ni Fortissimo (ちょく胸にフォルテシモ)
 * 2) Ashita ni Mukau Diary (2021 Remix) (あしたに向かうダイアリー (2021 Remix))
 * 3) Choku Mune ni Fortissimo (Instrumental)
 * 4) Ashita ni Mukau Diary (2021 Remix Instrumental)