The Sorrowful Double Heroine: Negotiation breakdown, slave play

"If he didn't return for three days, he would fall into a trap and die. At that point, the attack plan was cancelled. Do you understand?" With this in mind, Shibata, his superior, boarded the enemy territory alone and for three days. Code names Maia (Asahi) and Ellis (Ayayumi) disobey orders and invade enemy territory to rescue Shibata. However, the enemy's territory is dominant. The two of them were taken hostage by Shibata and were captured without any means possible...