According to legend, the space-time gate is real and has magical power through which people can travel through time and space. But only by possessing the colorful disc - the legendary key to the time-space gate, can the time-space gate recognize it as its owner and have the ability to travel through time and space... The lucky Lin Xiaoxi triggered the legendary key to the time-space gate due to an accident, so where should he go? Facing the many crises of the end of the world, is this the only chance to successfully get out of the predicament of the end of the world?
Intention: Behind every time and space door, there is an interesting or thrilling journey. Regardless of whether it is good or not to be in a different time and space, there is only one thing: this place of peace of mind is my hometown.