Cosmo Nuis, as the leader who could command the entire Cosmopolis, unexpectedly became the son-in-law of the Peyson family in Cosmopolis. Later, when the Dragonhead Scepter showed up in the public and Cosmo Nuis was finally able to get rid of his status as a loser son-in-law, his wife Rena Peyson suddenly filed for divorce. In order to declare his Dragon Lord identity to the world, Cosmo Nuis held a Dragon Lord's return ceremony. After shocking everyone by revealing his true identity, his former sworn brother Shawn Johnson suddenly took out another Dragonhead Scepter, and two Dragonhead Scepters appeared. Cosmo Nuis had to prove that what he was holding was the real Dragonhead Scepter which was the key for reclaiming his power.
