At the end of every millenium, five elemental crystals will emerge from the soil of the Earth. They are gifts from the almighty Universe, and represent the five great elements: Fire, Water, Air, Earth, Metal. Each of these gems will create a body to hold these immense elemental powers. The predecessors of the previous set of crystals are sent to protect and raise the future element bearers. As time progresses, each element holder's powers start to awaken, and so does another terrifying force... 

With the fragile balance between Heaven and Hell on the line, the Warriors are taken into training. A journey of power, responsibility and perhaps love, can the Warriors live through it all?

Descendants

Fire - Water - Earth - Air - Metal - ?

Predecessors

Fire - Water - Earth - Air - Metal

Nexuses

Jung Yunho / Jung Daehyun

Yunho, keen on taking care of the child he believed bore fire, took the extra step and assumed the role as Daehyun's father. Yunho struggles with trying to discipline his wayward son.

Park Yoochun / Yoo Youngjae

Yoochun placed Youngjae on the steps of an apartment when he was just born. A elderly lady took Youngjae in and Yoochun subsequently moved in to the block and helped to raise Youngjae.

Kim Junsu / Moon Jongup

Junsu left Jongup outside a restaurant. Jongup was taken in and Junsu frequently came to visit him under the guise of being a customer, often taking him out.

Shim Changmin / Choi Junhong

Changmin gave Junhong to an orphanage and took up a job there in order to keep an eye on Junhong. Like Junsu, he often takes Junhong out.

Kim Jaejoong / Bang Yongguk

Jaejoong raised Yongguk himself together with his neighbours, under the guise that he found Yongguk at his doorstep.