A secondary antagonist in the game Ace Combat 04 as a member of the Erusian elite Yellow Squadron. She serves as wingman to Yellow 13 due to his complete trust in her and is one of the few pilots to never be rotated out of the squadron.
During an attack on the Yellow Squadron's makeshift base by a group of resistance fighters, 4 is lightly injured and her plane takes damage, but she nevertheless carries on to defend the Stonehenge Turret Network. Unfortunately for the squadron, Mobius 1 has already completely destroyed the weapon complex, and shoots her down, killing her in the process, as the Yellows attempt to retaliate.