Itona creates a sophisticated remote-controlled tank, which he plans to strike at Koro-sensei's weak point; his heart. The other boys in the class, however, seem more interested in its potential for spying on girls. Later, Masayoshi Kimura feels embarrassment over his name's given reading, "Justice", so Koro-sensei has the students give each other code names during a training session against Karasuma, leaving Kimura with his true name to show him how well it fits. Meanwhile, Gakushu prepares for the next battle against E Class.