Kingston sealed the Kerberos Undead himself into the Change Kerberos card for his true plan: Using a surgically graft device based on the Rider System technology to fuse with his creation, becoming Kerberos II with Kingston's face on the monster's chest. It took all 4 Riders to fight Kerberos II, with Spade Warrior King Form's Royal Straight Flush & Wild Heart Warrior's Wild Cyclone only able to reverse the fusion. However, the Giraffa Undead takes the Change Kerberos for himself in the fight's aftermath for his own agenda. In the end, he was possibly murdered by the Giraffa Undead after he was defeated by the Riders with his dreams shattered.