Typhon

is a product of Heath Oslo's version of the Design Soldier Plan, also known as the "Typhon Project". He was experiment number TP-427. He was creating Yuuji Kazami's genes as a base.

Appearance
Typhon's appearance is very similar to that of Yuuji. Unlike Yuuji, however, Typhon has white hair and red eyes. This is a side effect of experimentation during his creation, where the intended result was to promote regeneration and have him mature faster than a normal person.

Personality
Typhon, despite being a genetically altered copy of Yuuji, considers himself more similar to "their" sister, Kazuki. He considers himself a "genius", and dislikes being compared to the original Yuuji.

Plot
In late July of 2012, Typhon attacked the Republic of Kazakhstan Consulate's in Japan. News stations everywhere reported that the culprit was the original Yuuji Kazami.

On the night of August 6, when Yuuji launched a single-man assault on Heath Oslo's Tartarus Isle, Typhon came out to meet him before he was able to reach Oslo himself. Typhon, wanting to test himself against his original, engaged in battle against Yuuji. Typhon was ultimately killed by Yuuji.