I'm Catching Monsters in the World of Immortality

There is a job in this world that is so unpopular that it is about to become extinct, it is called the monster hunter. Su Wu Jiu was the last one. She has wood spiritual roots and mediocre qualifications, but she is gifted with the ability to hear the heartbeat of demons. She releases the good demons; she eliminates the evil demons; and if you are not sure, write them down and look back at them. She has a book of demons, which she writes down when she sees a demon, and she writes the verdict herself; she has a red umbrella, which can be transformed into a sword, a net, or a lamp, and can defeat the demons in the world; she hangs a peach wood order around her waist, with three words engraved on the front: Demon Catcher. Everyone said that this business was going to be extinct, but Su Wu Jiu just thought there were too many orders—— The chief swordsman owed her his life, the young master of the aristocratic family followed her in formation every day, the junior sister Danzong chased her and called her sister, and the eldest lady Yigu insisted on learning to see monsters from her. She paid no attention to any of them. Because she heard the sound getting louder and louder in the depths of the demon realm. "Where can I pick up my next order?"