Tsuiraku JK to Haijin Kyoushi

Mikoto Ochiai is ready to jump off of the rooftop of her high school's building after she got rejected by the boy she loves. However, her physics and homeroom teacher Jin Haiba who suddenly appeared on the rooftop for a smoke, talked to her and saved her from falling down. He even asked her to go out with him...

How will things go between the smart and calm Mikoto and her seemingly carefree teacher Jin?