"Dime Novel"/"Star Actor") is a Japanese double A-side single by King Gnu.

On September 25, 2020, it was announced that "Sanmon Shosetsu" would be used as the theme song for the Nippon TV drama A Girl of 35, starring Ko Shibasaki.

[1] They later announced that they would release the song as well as "Senryo Yakusha" as a double A-side single in December.

"Sanmon Shosetsu" was pre-released on October 30,[3] and the music video was released on November 6.

[4] "Senryo Yakusha", used as a commercial song for NTT Docomo's 5G, and its music video were released simultaneously on December 2.