บท 81: Demon-Kin Fourth Form: Rumble!

"Battle suit overdrive." Silver said with a sinister smile.

Buzz!

His white suit lit up with blue light, tightening even more as a serum was injected into Silver's body through the suit. His veins began bulging, giving out a pulsating blue glow, while his eyes revealed a dazzling blue flash. The suit began expanding as Silver got bulkier, increasing in size rapidly, adjusting to his bulking stature.

"I hate it when you use that…" Alex said as he took a few steps back.

Buzz!

Alex's black hair turned white instantly, and his pupils turned purple within his black eyes. The red shade of his skin darkened as he assumed a fighting stance.

Ba-Dum!

Loud heartbeat sounds erupted from his body as purple veins began bulging, pulsating in rhythm with the heartbeat.

Demon-Kin fourth form: Rumble!

"GGGGGIIIIIIIIIIIII!" Alex let out an inhuman sound as he placed his left palm over his right hand.

Buzz!