Robot Matrix

"Oh, it's Robot Matrix. He just wants to say hi to me. After all, this guy's the commander of the Bolt Force, a rival of the Storm Union. Can't believe he stood beside me, wearing a fedora hat, a trench coat and a necktie, and he even held an umbrella and a suitcase right now."

--Su Ji-Hoon, Home Sweet Home

Robot Matrix is the commander of Bolt Force. He is also one of the six main protagonists of When the Cold Breeze Blows Away, like Su Ji-Hoon, Ruby Ramirez, Ryan Edwards, Moon Jae-in, and Lana Loud.

Before Ryan Edwards died, he is the secondary deuteragonist or the fourth main protagonist of this novel series, but when Edwards died, he eventually becomes the deuteragonist of this story in its later chapters.

Beacon War
"No matter. We will save Vale from invaders.''

--Robot Matrix to the Beacon Academy teachers when he arrived in Beacon War, Operation: Invasion Der Zukünftigen Akademie

Battle of Kassala
"That enemy giant robot is just as worse than Tyrant Oslo, even when I met this!"

--Robot Matrix to the crew of the Rah-Rah Robot about the Dardanelles Robot, The Wrath of the Nile

Robot Matrix would come to battle and would be going to kill NRC soldiers like when he killed zombies when Arnold, Carlos, Wanda, Ralphie, D.A. and Keesha needed him.

He will carry a Diablo SVIP with some special weapons, his own weapons and his Shotgun SVIP to give Ruby Rose and her allies, including the crew members of the Rah-Rah Robot, Arnold, Carlos, Wanda, Ralphie, D.A. and Keesha, a Diablo SVIP and some special weapons, but he will his weapon and Shotgun SVIP to fight the Dardanelles Robot and give assistance to the Rah-Rah Robot and its crew members.

Robot Matrix will be praised as "the special protector of Bolt Force and Team RWBY" by the Grand Alliance.