One is a noble young prince who comes from a noble family and is free and easy, and the other is a down-and-out beggar who is wandering on the run and his parents are dead. A chance encounter at the gate of the military camp and an inadvertent feeling of compassion led to a bond that lasted for many years. From then on, he was no longer alone in the treacherous and dark court halls and the battlefields where swords and swords flashed; whether it was the scenery of stars holding the moon or the misery of betrayal and separation, the young man beside him never changed. In a moment of compassion, he became the boy's light, and the boy was willing to protect him with his life. But he didn't know whether it saved him or harmed him. In the end, he won this unintentional transaction.
Concept: Strange and dark, the mutual protection between swords and shadows