This is a set of 4 limbs and a head built by Kage Yaichiro and Project THOUGHT to test the effectiveness of verious limb designs on the Test Thought Armor - X01 “LAMIA Agura”.
These components consist of the rotating joints found on some hard environmental suits arranged to mimic that of the humanoid form. The goal of these is to find which joints correctly mimic human form, while attaining maximum strength, speed, and accuracy.
While not a fully effective set on their own, elements of the components found their way into the Test Thought Component - X01M "Mixed Limbs" variant.