C389 The Giant Painting at the Top of the Mountain

"Heh, surprised? That Tree Demon was the real deal, a late-stage Dharma Infant Stage being. Even injured, its essence remained untouched. I nearly devoured it whole and spent over a decade digesting it. Naturally, I've made some progress!" Ao Xin said, grinning.

Indeed, Hsu Mu was taken aback because Ao Xin's soul now seemed even more potent than before.

With the explanation clear