Or perhaps it was because Yu'er and He Song had already been exceptionally close to each other.
That led to the extraordinary nature of this method.
A variety of speculations flashed through his mind, He Song withdrew his gaze.
Since the Spirit-controlling True Formulas had been successfully applied, the effects would naturally manifest over time.
In this way, Yu'er's transformation would certainly become known to He Song in the future.
Even if nothing happened for the time being.
He Song had no reason to worry.
In such a situation, He Song also didn't need to observe any longer.
With this thought in mind, He Song's gaze returned to Yu'er.
He saw that at this moment, Yu'er had already fallen into a deep sleep.
Seemingly digesting the sudden surge of power within her body.
Seeing this scene.
He Song didn't say more and turned around to head back to the Quiet Room where he had been in seclusive cultivation.