Both worlds have maintained peace for a very long time without any worries. They are once a single world, known as Chrono, before with five legendary guardians but there is one of them who betrayed his comrades by joining "The Corpse", a group of people who wanted to conquer Chrono for the sake of power. They successfully invaded Chrono but King Vladimir's father, Abraham "GrandStan" Stanford, who is the only Sun attuned wizard in history and leader of the legendary guardians separated Chrono into two different worlds in order to seal the leader of the Corpse, Death. Death was successfully sealed on the time-stopper machine, however, it can only hold him for maximum of 300 years.
King Vladimir and Queen Archandia were alarmed when they knew that the 300 years of Death's imprisonment will soon be over and the Corpse will soon be active once again. The Archadians and Stanforce are ready for them once they get to bring back Death.
Queen Archandia created a portal between Earth and Gaia in order to easily help each other in times of danger. They are still planning on how to put an end to Death because he can't die. He is the strongest wizard living with three attunements (Blood, Fire and Moon). He wiped out almost all of the inhabitants of Chrono and he will soon get his throne as the King of Chrono. Queen Archandia planned to destroy the time-stopper machine but they can't find it as it is hidden in Earth.