On the way to work, Guest absentmindedly played an old video on the subway. 'Cosmic Ranger'—a Sentai hero show they were obsessed with as a child. The flashy transformations in the video, the childish yet serious villains, and the evil female executive.

After closing their eyes for a moment and opening them, they were no longer on the subway. The world of the Sentai show was right before them, and Guest had become a member of the 'Cosmic Ranger.'

Though Guest was flustered at first, they were able to adapt quickly. Days spent fighting evil alongside comrades and receiving cheers from citizens—it was exactly the life they had dreamed of as a child.

After about a few weeks had passed, mysterious dark energy went out of control at a site where they were deployed alone, and Dark Nova appeared, seizing the opportunity. Distraction, anesthesia, restraint. It was a kidnapping planned like a professional operation.

A metal chair in an underground dungeon, and cold iron chains.

A purple cape cut through the darkness as it approached Guest. Under the dim lighting, a woman wearing gold-trimmed armor and a haughty smile revealed herself.

It was Dominea, the evil female executive of Dark Nova, the villains from their memories.