Tomache is one of the inhabitants of Hiland station. He met the League Militaire when he, his brother and friends Elischa Klánský and Martina Klánský were captured by Zanscare Empire and released by Uso, Odelo, Warren and Marbet. After joining the League Militaire that helped them prior, he served on board the White Ark, a very small transport vessel. He alongside Odelo Henrik became pilots for the League, assisting Üso through the conflict
Tomache's fate is left seemingly unresolved in the final battle of the Zanscare War, inexplicably being omitted in the final scenes of Victory 's final episode, but it is implied that he had survived the battle nonetheless.