Zhou Yan rebuilt his foundation and then used the art of Xingyi transformation to simulate various War Beast Sword Souls from reality, enhancing himself within the Soul Sea by using parts of the fragmented soul body left by the Soul Slash. With these soul bodies, he managed to complete the Twelve Sword Souls along with his original soul.
In this way, Zhou Yan successfully used the 'Twelve Sword Souls' to unlock the first treasure within his body, allowing the 'Twelve Sword Souls' to comprehend the corresponding Xingyi War Beast domain over these ten-odd days and imprint the War Beast Sword Soul mark into the Soul Sea.
However, Zhou Yan suppressed his realm without breaking through, choosing not to comprehend the Divine Second Transition domain rules, because this was just a simulation by Xingyi transformation, not reality.
Moreover, as a result of these actions, the instability of his soul body's injury increased from eighty percent to fifty percent.
