A.A.A.

The protagonist Kouzaki Shin, an employee at the largest corporation in the world working a meaningless desk job, becomes a teacher at the android training institute A.A.A. after his junior Sakaki Kou puts in a good word for him. However, it comes with an additional task of recovering a clone, manufacturing of which is prohibited, that has slipped into a group of androids.

A career track as company elite at the main office awaits him if he succeeds in recovering the clone in the utmost secrecy. As he begins investigating, he is stunned to find out just how humanlike the androids' behavior is. Will he be able to find the clone in the group of androids who bear such close resemblance to humans? What conclusions will he draw?