A special preview special released a few weeks before Kamen Rider Gavv's premiere, which revealed new details and unreleased footage featuring the next Kamen Rider, Kamen Rider Gavv.
Depicting fictional storylines of the members of FANTASTICS, the story takes place in a dormitory in Tokyo. Behind-the-scenes at live performances, real-life discussions, alone time, and budding feelings set into motion the unexpected and fake reality of FANTASTICS.