Douluo: From Ancient Times to Douluo Continent 4

About Douluo: From Ancient Times to Douluo Continent 4: "Damn system, why don't you help me awaken a martial soul? Other transmigrators, who aren't three-souled martial spirits! Four-souled martial spirits! Only I am miserable, without a single martial soul..." "Forget it, as long as I don't go out, I am an invincible existence. Add to that the signing-in ability, don't I still live well?" "Can't be a Soul Master, can't I still train Soul Masters?" Tai Nan, transmigrated from Blue Star, miraculously awakened the system, but the system's abilities left him defenseless...