Jang Jin-Myeong, a master of Gyuhwabojeon. He is accused of being a traitor and falls off a cliff right before he dies. He realizes his two mistakes. One is that he read the secret Gyuhwabojeon, which gives you strength but loses your masculinity, and the other is that he did not kill those cowards, Wang Jin and Seop Pyeong, earlier. When he opens his eyes in an unknown space when he is about to die, he sees the real Gyuhwabojeon and regresses to 32 years ago, just before he was castrated. Fortunately, in his second life, Jin-Myeong protects his belongings, and the power of Gyuhwabojeon still remains in his body!!! Jin-Myeong decides to go back to the choice he regretted in his past life and take revenge on Wang Jin and Seop Pyeong who drove him to death. (Source: KakaoPage, translated)

Byron Heiden, the eighth prince of the Lagon Kingdom, is ostracized for being an incompetent low-grade summoner. Consequently, he wastes his days fighting at a summoner gambling hall. However, as it turns out, Byron has been forced to hide his true powers from the public because he is the summoner of Russen the joker, a symbol of rebellion against the royal family. Despite knowing this, Taihan Heiden, the second prince, suddenly reappoints Byron as a successor of the throne and sets him on a mission to find the mysterious rebels that attacked the royal palace 11 years ago. (Source: Tappytoon)