jiritsu shikou kotei houdai

自律思考固定砲台 律

(Jiritsu Shikou Kotei Houdai, "Autonomous Thinking Fixed Artillery"), nicknamed 律 "Ritsu"

A robotic "classmate" that joins the cast of Ansatsu Kyoushitsu (Assassination Classroom) in chapter 20. Her virtual form is that of a middle school girl, while her physical form is reminiscent of the black monolith from 2001: A Space Odyssey with a video screen or the appearance of a rather large digital media player.