Full Name: Yu Ikusaba

Alias: Ex-A, Yiwh Malachite

Gender: Female

Alignment: Chaotic Evil

Role: Major Antagonist

Biography

Much is unknown about Yu's origin, other than being a NESTS experiment. Unlike the other experiments, she was unpredictable, and problematic for the cartel.

At some point, she had been selected for the NESTS elimination kill, but long before that, she had become interested in Sophie Chrysocolla, who had not minded the time at NESTS. Afterwards, Yu had used the facility without NESTS knowing, cutting off the cameras and disappearing from the field of view. Taking advantage of the fact that she was missing, she created a bio-mechanical puppet based on Sophie.

After being thrown into the test field, Yu infiltrated double her body to use in combat, to stay as far away as possible from the other experiments, and with this, she killed 12 experiments, but the puppet was destroyed by the experiment. code name, Zircon. After that, she would then fight in person, killing 2 experiments, and facing Zircon, however, the code-named experiment, Knave, ended the test, killing the last experiment, leaving 10 surviving experiments.

Jasper

Bloodstone

Tigereye

JS23

Malachite

Knave

Zircon

Knight

Chrysocolla

Lancer

Her body double had been infiltrated under the code name, Jade. but it was not marked as a success by NESTS due to its previous destruction by Zircon, and once NESTS had been dissolved, she took advantage of that to take over all the facilities in the main base. Yu would take advantage of that same time to change her body, turning it into a mechanical body that did not need any type of fuel.

Some time later, she was hired by House Magyar, as their engineer and hitwoman. She would take advantage of that opportunity to obtain new machines for her workshop, thanks to the offers from the Hungarian house. With this, Yu would reconstruct her body double making her more unrecognizable from a normal human.

Now, Yu's only target was Sophie, who he became interested in in the poster. and by then, the Shadow Wings and Jaguar were enemies of House Magyar, which interested Yu. since she had discovered that Sophie was now siding with both groups.