After all his years of hard cultivation, he hadn't discovered the true use of his own abilities, unlike Zhang Chen who figured it out in just one glance.
He was really curious about how Zhang Chen knew the true use of his skill?
As for how Zhang Chen knew? He mastered the Devouring Technique, being an ancestor in devouring techniques, the opponent's methods appeared too simple to Zhang Chen.
I can devour the essence of everything, aid in cultivation, strengthen my innate foundation, and transform my footing. This is the true path of the Dao, but the opponent? He's absorbing Iron Essence to refine Copper Skin and Iron Bones, with limited future achievements.
Even if he finishes devouring all mundane iron and moves on to Innate Geng Metal, then what? At most, it will temper his body to be as Immortal as Innate Geng Metal, but ultimately, it won't achieve the Dao.
"It was just a guess," Zhang Chen replied with a smile.
