The title "Stray Cat on Sunday" alludes to Neon’s desire to escape her wealthy but restrictive home life—effectively wanting to become a "stray cat" free from her family's rules. The "Sunday" reference points to the day Kamen Rider traditionally airs in Japan.
The track is characterized by its upbeat tempo and "idol-style" energy, reflecting Neon’s public persona. The lyrics describe a playful, whimsical relationship, comparing a loved one to a stray cat that is "carefree" ( norari kurari ) and "whimsical" ( kimagure ). It emphasizes a "perfect" Sunday spent laughing together until the sun goes down. Where to Listen or Download The title "Stray Cat on Sunday" alludes to
In the show, the song serves as the official theme for , the fictional livestreaming program hosted by Neon Kurama. The lyrics describe a playful