Junior Sister, Destiny Armor Girl, I Will Help You Upgrade.

(Full-level senior brother + Involved junior sister + Decisive killing) Lu Yuanhang traveled through the armor world, mixed into the armor alliance and became the chief disciple of the alliance leader. Although he only awakened a set of blank armor, fortunately he was extremely talented and he broke through to level 99 in just five years! Just when he was confidently preparing to break through level 100, he faced a bottleneck and could not break through no matter how hard he tried. At this moment, the Destiny Brother System comes. As long as you bind the Destiny Armor girls and teach them to upgrade quickly, you can get breakthrough points, and you can even get many precious rewards. When the breakthrough points are enough, you can break through to level 100! So Lu Yuanhang began the task of teaching apprentices on behalf of teachers. The second junior sister has the destiny flame dragon armor, the third junior sister has the destiny wind eagle armor, and Xingtian Nava... Lu Yuanhang: Steady! All solid! In order to break through as soon as possible, Lu Yuanhang and his junior sisters rolled inward with all their strength, and leapfrogging battles became commonplace. Junior sisters: Senior brother, stop taking the test. I'm only level 10. You ask me to fight against level 30 enemies. I really can't stand it...