Manga 4683 Otona No Jikan

The beginning was promising, it had fairly good art work so I was excited. But, as the story progresses, I realized the plot was really dumb. The main conflict in the story is about the difficulties of hiding a student-teacher relationship, I get that this is a smutty kind of manga but the character development was done poorly. The teacher is extremely smart because he teaches chemistry but he eventually does something really dumb that leads to the major problem in the entire story. It could have been a better manga if the story was thought out more properly.