Zheng Yichen fought alone, having suffered so many losses; if he could integrate stronger cannon fodder, then using them to fill gaps at critical times would also be good.
The Ark of Life allowed Zheng Yichen to spill blood and create a large number of "creatures," which could further be enhanced with the Celestial Being's Serum.
A large number of creatures formed a special grand formation, gathering many into one; even a group of cannon fodder could exert enough strength.
This battle made Ahn Ke realize the "insignificance" of certain things even more; she felt that her mindset could not go back.
On the contrary, everything seemed very normal for Zheng Yichen, as he immediately blended into daily life after returning.
Ahn Ke, however, no longer wanted to return to the Ahn family; it was unnecessary, and she no longer wanted to deal with those trivial matters.