Who is Steel Wire in the novel, Almond?

Steel Wire is one of Gon's friends. He and Gon were in one of the same youth detention centers together. Despite Steel Wire's infamous reputation, Gon wants nothing more than to be close with him. Steel Wire cares about nothing but being tough, and is unafraid of hurting others. At the end of the novel, when Yunjae is looking for Gon, he learns that Gon is with Steel Wire. Though interacting with Steel Wire is dangerous, Yunjae visits his lair anyway. While there, Steel Wire nearly kills Yunjae.