Newly appointed female teacher Nagai Mihina enforces an extreme disciplinary policy, stripping poorly performing students and punishing their bodies. When the department head discovers her methods, she arrives to intervene, sparking a fierce catfight between the two women. They drench each other in mud and exchange relentless slaps in a brutal battle. Later, members of the Crucifixion Club bind her to a cross. The students she once punished forcefully thrust their thick cocks into her, piston-driving her at high speed until she erupts in an intense, explosive squirt. Her wide-open pussy is then flooded with thick cum, plunging her into violent ecstasy.