"Swoosh!"
Suddenly, from the darkness to the left, a round grenade was thrown, its surface rough and mottled with grayish-brown patterns - a type of high-explosive grenade developed by private military contractors, capable of demolishing a small building. The grenade tumbled through the air, cutting a straight and swift arc towards Bai Xiao.
"Spiked Star Grenade, fall back, don't get caught in the blast!"
The Biological Mecha Master who threw the grenade yelled out a warning.
Instantly, five figures retreated with lightning speed. Their robust Biological Armor leaned backward at a blur-like sharp angle to the ground.
The youth with a scarred face kept his gaze fixed in the direction the grenade had been thrown from.
"Swoosh!"
"Boom!!!"
The grenade exploded on the spot, turning into a swelling red fireball.