The Full Closure of Skin-Toughening Realm!
When he reached the Full Closure of Skin-Toughening Realm, he also completed the most important step of Bone Forging. It could be said that even though Junior Leopard had suffered unimaginable pain today, his had gained a lot.
However, with the repeated quenching of the Blood Evil Harden Bone Fist, Junior Leopard met the same problem when he was displaying the Moon-evil Painted Skin Punching Skill. His skeleton had reached the limit. If he continued practicing, his skeleton would be like jade, tight like gold. He would reach the initial stages of Bone-Forging Realm. However, in this manner, he would become a monster, just like Nezha and Red Boy, being a child for prolonged periods. He didn't want to become a spring chicken without sexual life!