Using its dozens of hooks and strings, it pulls an eight-meter-tall echo away from the Null Sector while pointing a gun and a variety of weapons at the echo. It slowly moves toward it before thrusting all its weapons into the Core Bit, only to be blocked by a shield and snapped by tentacle-like nodes.
"User Form detected: an abomination resulting from numerous devourings of other echoes. A virus that needs to be terminated."
With no reaction from the Motherboard, the Guardian Echo panicked. It looked around only to realize it was not in the System and only remembered that it was flown out to the Null Sector to protect the Interface, which is the platform that connects the TIENS to the outside world. If it gets corrupted, the User Echoes in the Interface will be freed from Motherboard control.
"So, this is an exterminator. Are you classified as a Law Echo?"
Using its fragmented data, it uses its tentacles to attack the abomination that floats in front of it just like its program dictates. With its large body, it has the upper hand, but unlike in the System, in the Prototype Sector the more you devour, the stronger you are. Using its multiple nodes condensed as a weapon, it thrusts at the Signal Skin protecting the Core Bit of the Guardian Echo and uses knives to cut off its tentacles.
Being in a stalemate, it uses its gun and points it at the center of the Core Bit. For the first time, it fires the gun at the cost of one node. That is the reason it avoids using the gun, because unlike throwing weapons, the bullets from the gun won't be retrieved. Breaking the shield and using a spear, it thrusts dozens of spear nodes into the Guardian Echo until its defense breaks. Before being devoured, it leaves a last message:
"You match the profile of that User Echo—both corrupted for unknown reasons. It infected me as well, as if designed to be a virus from start."
After devouring the Guardian Echo, it realized what it meant. Data flowed through its Core Bit as it processed all the remaining data left.
It was a Guardian Echo of the Asian Sector from the TIENS. Suddenly, all the Guardian and Law Echoes were summoned because of a corrupted User Echo. It was a smooth task, but after throwing the echo into the Null Sector, the two Guardian Echoes who held it using their tentacles became corrupted, as well as the pathway it was floating in, resulting in the Law Echoes tearing it apart and sending it to the Null Sector to be repaired by the Codemason Echoes.
Back to its usual route, it kept tabs on the User Echoes who had been showing signs of corruption. Only after an hour did it receive another signal of a User Echo turning corrupted in the same local section. Unknown to the Guardian Echoes, the Local Form in the section, using its program to bypass pathways, sent data directly to the Motherboard, and the Motherboard manifested itself to the same Local Echo watching the scene in the Interface.