This is the continuation of the previous story; picking up where "Celestial/Terrestrial-Warriors, Vol.#1: The Daylight of the Lost Spiritual Reawakening" left off.
Now the group realized just how weak they are compared to the officers of darkness that served the fiend Hellde, who was at one point the leader of entire Four Empyrean Sugaars, who will play a huge part in the upcoming battle that he's a part of; having connections with the same heavenly evil, that once connected with the fabled Sugaars & Sugoi's. And they still need to achieve their angel-morphing process. Their sixth member named Draco takes them to the place known as the "Sacred Grounds", where they shall undergo numerous other tests in order to reach enlightenment, begin their angel-morphing, and defeated the wicked officers and Hellde himself. Not before facing off against more of his Top Tier forces and seeing the horrifying force that they can bring as well. Reaching the Tower, where the source of all Aether exists. And for the Exalted 7, it's their chance to activate the Angel-morphing power, that lies dormant inside of them. As well as clues, to the mysterious heavenly evils, known as "The Watchers".
This is the second of the seventh volume, as the heroes have found their so-called sixth member and eventually finding the final member of the team. They venture all the way to the "Sacred Grounds" in order to realize their angel-morphing powers, and be able to begin the journey that has been set forth for them to achieve.
They will go through many trials and tests, on a meta-physical plane. And they start to learn more about the real history of the Byakko White Tigers, and a little more about the disappearances of the Sugoi, and the disappearing Celestial Dragon clan, as well. Celestial/Terrestrial Warriors: Sacred Grounds/Tower of Millennial Eternity places off where the events of volume one left off, as they have learned about who Hellde is and what he plans to do when he reaches his full completion. As well as more clues, on who are the heavenly evil beings known as "The Watchers", and how they came to be. Plus, a short story, of how the young and final Empyreal 7, is wrapped in being such a place that she's in, including the whereabouts of her love ones, and the beginning introduction, into what has become to this modern day and age. And another short story, of how the young man's past for the better future, has shaped him into who he is as of now.