Klein turned around and looked at the familiar yet unfamiliar figure.
He had imagined all kinds of attacks on Utopia, but he had never expected such a scene to occur.
If Amon had "Parasitized" the marionette, Gehrman Sparrow, then with Klein's current status and the Spirit Worms on Sefirah Castle, he definitely would have immediately discovered the problem. And if Zaratul were to swap the Spirit Body Threads, "He" could only temporarily hide it from him. Furthermore, "He" needed help from an angel like a Knowledge Emperor or a Servant of Concealment to ensure the element of surprise in the sudden attack. Only the humanity provided by a Spectator could slowly ferment, without revealing any abnormalities on the surface.
To prevent such a situation, he could only sever the Spirit Body Threads and allow the marionette to deteriorate till it died. That way, regardless of whether it had any humanity in it or not, it would ultimately cease to exist.
