2B9SA2 anthologizes three stories, starting with 2B9S, in which androids 2B and 9S are given a new mission: practical training in human reproduction techniques! After all, androids can’t very well expect to help return humanity to its former glory when they return from the moon if they’re ignorant of the reproduction process. Next up is 9S2B, where 2B discovers the bunker commander has been using 9S for her personal pleasure! Emotion may be strictly forbidden, but 2B can’t help but feel a twinge of jealousy… so it’s a good thing 9S has no such qualms about expressing his feelings. The final chapter in this three-chapter compilation is A29S2B, where just like the title, 9S finds himself sandwiched between the two female androids! After the [E]nd of YoRHa, 9S still harbors a burning hatred for A2… and she’s more than happy to taunt him into letting out his frustrations all over her! But before things can get too serious between the two, 2B awakens from the repair efforts of the Pods, and 9S can finally indulge himself in the way he’s always wanted. These three stories are pure wish fulfillment from Aoin, and now fans of Nier can finally join in on the fun!