He Song spread out a Divine Thunder Array in the mountains below.
Within this Divine Thunder Array, he left behind many spirit stones to supply energy for its operation.
Following this, He Song's figure swiftly returned to where Yu'er was located.
Yu'er still had a smaller Divine Thunder Array active on her body.
Throughout the several months it took to travel from Hu State to Luo Feng Province, He Song had never removed the Divine Thunder Array from Yu'er.
Firstly, it was for safety precautions.
During the journey, He Song had never let his guard down.
Even after several months had passed, He Song had not relaxed much and, just like at the beginning, he continuously remained vigilant of his surroundings to guard against any surprises.
Secondly, it was to avoid exposing Yu'er's existence.
Yu'er, now a Late Foundation Establishment Stage spirit beast, was massive and very conspicuous flying through the skies.