Story : 8
The story is... simple and unexpectable. The story is super laid-back with no drama, no serious plot and no love triangle. Like the title suggest why are you here, sensei? Will make you wonder why is she there. Don't worry, you will always get your answer.
Character : 8
The first pair, Ichirou Satou and Kana Kojima.
I really really love this pairing. We got an average high school student and a devilish teacher. The high school student isn't really interesting, he just your average high school student. He's a bit dense and take any opportunity when he can. The teacher is... cute. She is your mean high school teacher that you would run the other way if meet eyes. But, she is very cute when it comes to certain situations. I will let you find it out yourself.
Second pair, Rin Suzuki and Mayu Matsukaze.
This pair is a bit meh. It's a tall student with scary face that had trouble making friends(I never heard that before) and a teacher whom trying to help the student making friend. Nothing very special happens except the teacher always blush and the student is very dense.
