Nailisha slowly pulled a short sword from behind her waist. Zhou Sixue also drew a pistol-like weapon from her thigh. Lin Qishan and Chen Fengnan, on the other hand, moved to the back—the former's hand emanated a fiery red light, and the latter likewise took out a gun, though much larger than Zhou Sixue's, resembling the length of a sniper rifle.
The one in golden armor merely placed a hand on the hilt of the sword.
Lin Fei merely allowed specks of black energy to appear around him, purely using the inherent strength of the Black Demon Sword for vigilance.
The Black Demon Sword is an imitation of a Demon Artifact that grows stronger with each kill. Although it has a strong backlash against its wielder, should one be able to withstand it, the wielder would gain considerable strength. It's very convenient for concealing one's true power.