The time-traveler Teacher Lu changed his cruel elder brother Lu Yuan to restore his younger brother's innocence, and the big ash sac was changed into a little nanny. Time travel? Rebirth? House fight? Brothers? Father and son? Master and apprentice~. Let's see how Mr. Lu, the mad man who complained, turned piranha flowers into carnations in ancient times. . . .
Intention: In the beginning, human beings are inherently good. We are brothers, why should we be close by flesh and blood?