Those that think that teacher is going to face repercussions for her actions need to read himegoto and see that when Ryo wants someone to get away with soul murder they do without any semblance or shape of karmic retribution.
Besides sensei is turning this into a cash cow with reprints of earlier volumes and the like, I'm not saying that Chako deserved even a fraction of what has happened to her but poor girl, she talked the talk but broke her legs trying to walk.