The injured Yi Xiaofei was well taken care of by Lin Qimeng, Antian Liangzi, and Leng Linglong.
As for Yi Xiaofei's recovery ability, it was quite impressive on its own. Within eight days, Yi Xiaofei's strength had fully recovered. Especially his spiritual power, which had made a significant advance.
This advance was a benefit from the remaining energy of the Blood Spirit Crystals.
Yi Xiaofei had used the energy of fifty Blood Spirit Crystals to form the Spirit Power Blade. The real consumption was substantial, much of it wasted. Although Rogue Dragon had absorbed a part of it, there would always be some residue. That residue was absorbed by Yi Xiaofei.
They say a blessing in disguise, and Yi Xiaofei could say that every time he experienced this! One is certain to gain something after overcoming difficulties. Whether the gains are big or small, reaping some rewards is a matter worth being happy about.