Draco and Eva settled down to cultivate after messing around for a bit. They first worked on their newly acquiered Cultivation Methods.
The Holy Demon Record and Supremacy Theory gave Draco and Eva great physical strength and a special form of energy. Draco in the form of Demonic Qi, and Eva in the form of Heavenly Qi.
Just like Draco, Eva could theoretically spam any of her Heavenly Eye Inheritance techniques when she reached Blood Pulsations of the Supremacy Theory, yet it also had the same drawbacks, meaning she would be forced to recultivate that realm if she did.
The Bone Cleansing Realm just upped their power without adding much, and when they broke through Flesh Hardening, the same occurred. With the amount of resources and pills Draco prepared, it took them less than a week to reach the peak of Flesh Hardening, which was level 10.