I Have Room for Martial Arts Practice

Traveled to another world and became a jailer. This world is extremely weird, with martial arts, Buddhism, demons, zombies, ghosts... Demons and ghosts cause harm to the world. Fortunately, there is a mysterious space in my mind, where I can practice cultivation and my understanding will increase dramatically, and I can learn any technique in one go. Singing and advancing all the way, slaying demons and demons, killing enemies when encountering them, and reaching the pinnacle of martial arts.