Soukou Kihei Votoms: Case;Irvine

Irvine Lester makes his living repairing Armored Troopers while quietly taking part in illegal AT gambling matches to support himself and his sister. He hides his real skill by deliberately losing, treating the arena as a source of money rather than a place where he wants to prove anything.

That arrangement collapses when other fighters realize how talented Irvine truly is and demand a serious match. Forced to reveal abilities he preferred to keep buried, he is drawn deeper into a violent world where machines can be repaired after battle far more easily than the people inside them.