@SuperOniichan, no this character route(s) ends at chapter 100 and then a new couple starts. The reason why I am saying routes is because after this teacher the next volume (chapters 90-100) is about the other teacher, overall its 30 chapters but we are at halfway point now.
Yes, we only seen half of this ... great, at least we can start counting down I suppose ..
The new couple after this is a more or less normal guy as the teacher looks like delinquent (still male student, female teacher as far I can tell), no traps.