You Can Hear the Sword Ancestor

Monsters raided the town, and the stable barrier at the foot of the mountain was actually destroyed by the mysterious soul-eating pattern. When the monks and their juniors traced the truth, they accidentally discovered that the matter was related to Lin Wan, a junior sister who disappeared three years ago. From the fragments of the broken stele to the "Burning Heart Valley" and the "Secret Treasure of Resurrection" mentioned by the evil cultivator, the clues point directly to the past of the junior sister's voluntary sacrifice. In order to find out the truth behind the sacrifice of their junior sister and prevent monsters from invading the world again, the two resolutely went to the crisis-ridden Burning Heart Valley to uncover the secrets of the ancient secret place and the reasons behind their junior sister's choice.