Kill All the Evil Spirits in the World

The protagonist, Lee Hyori, is 16 years old, 175cm tall, with pure black hair, a tough-looking young handsome boy, and a normal skin color. He is a high school student who has just entered the first year of high school. On his way home from school one afternoon, Lee Hyori met a middle-aged man in black clothes and a hat in the narrow passage of the house he passed, and he began his adventure. The protagonist's parents were the previous generation of soul-killing guards. Novel setting: In this world, there are levels of combat power: humans, level 5 soul-slaying guards, level 4 soul-slaying guards, level 3 soul-slaying guards, level 2 soul-slaying guards, level 1 soul-slaying guards, advanced soul-slaying guards, super-advanced soul-slaying guards, and legendary guardian guards. Evil spirit, level 4 spirit slave, level 3 spirit envoy, level 2 spirit master, level 1 spirit king, advanced spirit king, super advanced spirit emperor, ultimate evil spirit emperor There are 308 spirit-killing guards in this world. They are responsible for destroying evil spirits that are harmful to ordinary people in the dark. Once the evil spirits reach level 2, they will begin to have human characteristics. At level 1, they will take the form of humans and disguise themselves as humans. The spirit-killing guards need to be distinguished by spiritual warriors. Ability: Fight with spiritual energy