Lumi was originally a spiritual pet in the Buddhist realm. He sealed away evil objects for the Lord Buddha and died for thousands of years.
When he woke up again, he was awakened by a demon boy. His training declined and his memory was lost.
The evil thing came again, but the young man smiled and said: "I will protect you, think about it slowly."
Fighting demons all the way, accompanying you all the way.
Until he discovered that the young man's life experience was the cause and effect that he had personally planted back then.
Purpose: Protection and sacrifice, evil will not overwhelm good