The enemy has attacked the Transbaal capital in search of "the stone," an artifact which will turn rocks to gold, cure disease, and grant eternal life. The Angels volunteer to take the stone with them to lure the enemy away from the capital, but soon fall prey to their own weaknesses.
調査回収された『あの石』と呼ばれる謎の物質を狙い、反乱軍が襲ってきた。エンジェル隊は『あの石』を守り抜こうとする。
