The Sun and Moon Secret Realms

Ace's true purpose in attending this trial was to get into the secret realm of the Union and have an advantage that could help him achieve his mission. This all could only happen with the Chosen One status. 

Although he didn't get that status, he clearly got the advantage he was looking for, and now all was left for him to move toward his goal. 

"The Sun and Moon Realms are the Holy Lands left behind by the Sun and Moon Gods for the Chosen One. 

"The Sun Realm is extremely hot and filled with Yang Qi while the Moon Ream is icy because of Yin Qi. 

"Both realms are divided into three layers, the Upper, Middle, and Lower layers, and each layer has three levels.