This single was released to promote the, at that moment, upcoming album 確率論≠paradox. It again contains two non-album cuts besides the main song, a feature that they seem to repeat on every single, making it worthwhile to track down all of their singles.

CD release

Cat. nbr.: King Records – KICM 1938

Track listing:

1. Catch me if you can?
2. さくらん
3. 楽観ばっか