Rock, Paper, Scissors (가위 바위, 그리고 보, Gawi Bawi, Geurigo Bo) is chapter 43 of the Twelve Nights webtoon.
Midnight strikes, and Ja Gyeom's hitmen await for Dan Ah's suitor at Hae-hu Bridge. However, they fail to meet him. Jin Won tries to sneak past his personal guard to meet up with Dan Ah, but Baek Sa and the palace head servant interfere from his escape. They tell him news regarding Hyun Bin's childbirth.
A flashback of a young Rei is shown on how she met then Prince Hae Won. Rei's remorse with her half-siblings, her parents' deaths, the First Prince's succession to the throne, and Rei's marriage to King Jin Won of Ga Guk are also shown. Eventually, Rei's child is shown to be a prince, albeit with a catch.
Meanwhile, the Crimson Moon, Jeok, and the others break into the palace to steal the medicine for plague patients. To their dismay, they shockingly find the place empty. Furthermore, Hwi sights an inferno towards the direction of the rebel army's headquarters. Seon Woo is captured and confronted by Ja Gyeom, exposing the left minister as a spy. He also asks where Crown Prince Jin Yeon is.