That meant she could train on her own first, and when her body was tired, she could trigger "forced training," letting the Observer's power drive her body to continue her studies!
Just like now!
Her chaotic breathing stabilized, and her malformed movements were corrected. The stinging of Sword Light was suppressed in the silent cries, and the fatigue of her body was excreted sweat drop by drop.
However, this full-power training mode naturally had its downsides.
Because what couldn't hold up first wasn't Sonia's body but herself.
When pain and exhaustion were about to drown her soul, Sonia immediately stopped training, activated the "Sincerity" Technique Spirit to greatly enhance her Spirit Resistance, and forcibly held off the bone-deep weariness and the pain in her limbs!
Snap.