Looking at Destiny Through the Mirror of Cause and Effect, I Am a Monk and an Immortal

Thousands of years ago, the young monk Xuanji witnessed his childhood sweetheart, Princess Lin Jingshu, hanging herself for resisting marriage. She became a demon with grief and anger, but in the end she was unable to save herself. Today, thousands of years later, his remnant soul is reborn and becomes a monk guarding the ancient temple. His memory is not extinguished and his cause and effect are not resolved. By chance, I got a "karma mirror" that can reflect the past and present lives. The mirror reflected the tragic fate of Jingshu's nine reincarnations. The cause and effect mirror can trace the cause and effect of the past life, identify the disaster of a beauty, and can also peek into Feng Shui, destroy evil spirits, and kill demons. With this mirror, he embarked on the road to find the beauty of the ninth generation, pretending to be a pig and eating a tiger along the way, changing his fate against the will of heaven, breaking the Feng Shui killing situation, and killing all the evil spirits of cause and effect. He was unable to save his loved ones in the past, but now he has become the strongest guardian among the superpowers in the city. What he has to do is to prevent the tragedy from happening again in every life and save her from death again and again. He doesn't believe in destiny and doesn't care about reincarnation, he just wants to fulfill the unspoken "I like you" he said thousands of years ago. In this life, he will use the power of cause and effect to change her fate against the will of heaven and protect her eternal peace.