Extension: Have you ever competed with my brother? Anyone who has played luna knows this line. At first I just thought it was a simple line.

Luna was born in an ancient magical family and mastered the power of moonlight. She has seven brothers and sisters, but one day her brother killed all her relatives. Because of the power of magic, he couldn't control himself and made a big mistake. When my brother left, he challenged his sister luna (maybe he was guilty and asked luna to kill him). Luna refused to die, so his brother broke her sword and left. Luna set foot on the road to find his brother, and one day, the two brothers and sisters will come to an end.