Secret Martial Arts

Yan Feng traveled through time. . When he opened his eyes, he saw a blood-sucking monster lying on his body. The identity of the monster is actually his blood relative! In this world, demons possess the power to control all kinds of secrets and spy on humans in the dark. The cultivation method for humans to gain strength comes from demons. If you are not careful, you will suffer backlash... Use their power and kill them to protect your loved ones! Replace them! Be careful, don't forget who you are and become them...