When I started it, I didn't know what to expect from the story ( I thought boy would be 18 and even if he had feelings for the teacher, he would confess after few years or something) but boom, not at all like it, everything happens so quickly.
The teacher is very sweet, friendly and cheerful ( trying her best ) and the student ( 15 years old) is complicated ( haha not bad personality, little tired of family drama I guess ). I was in shock how their relationship gradually built ( it is definitely shocking).
I believe if the teacher was more strict, such situation would not arise ( she literally fell for him instantly which seems disappointing, like one should atleast have discipline and professionalism).
The storyline takes many unpredictable turns so it's interesting. It was definitely not at all boring ( a good binge watch) but I believe the concept is very controversial.