FSDSS-536 The teacher was raped by bad students when she tried to save the bullied student

Teacher Natsu steps in to help a student who is being bullied, and this angers the bullies who turn against her. The protagonist should probably muster up his courage and heroically attempt to rescue his savior teacher, but instead watches it unfold with a sad erection in his pants.

FSDSS-536 The teacher was raped by bad students when she tried to save the bullied student