Resurrection of Spiritual Energy: I Became the Empress' Companion Ghost

After Qin Feng traveled through time, he came to a world where spiritual energy was revived and demons were causing chaos, and he found that he had become the lowest companion ghost. Fortunately, after the system awakened, Qin Feng changed his job and became a researcher of ghosts. By studying ghosts, he can gain strength. The knocking ghost, the drowned ghost, the infatuated ghost, the head-picking ghost, the evil ghost king, the Nine Netherworld Dragon... With in-depth research, Li Gui's true face was revealed in front of Qin Feng. And Qin Feng also became invincible step by step. … Katsuyuki-kun, who was once the strongest ghost controller, was known as the Empress of Linghua. However, because of his sharp edge and arrogance, he was eventually besieged and died. After his rebirth, Katsuyuki-kun learned his lesson and just wanted to grow up in peace and stability. However, what she didn't expect was that her companion spirit was so unnatural. He claims to be a scholar, but every time he appears, it's like the end of the world. Humans panic when they see him, demons tremble when they see him... Katsuyuki-kun: "I really want to keep a low profile, but Master Banshengling doesn't allow it!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.