And It's Name is Epyon
Sono Na wa Epion
"After the Wing Gundam is completely disabled during the battle in Luxembourg, Heero abandons it (for the last time) and enters Treize's mansion. There, a philosophical Treize presents Heero with the Gundam Epyon, which is equipped with the ZERO System just like the Wing Zero. Meanwhile, OZ's attempt to destroy the Wing Zero is intercepted by Zechs, who sacrifices the Tallgeese as a distraction in order to acquire the Gundam. "