*Sunghoon 22y/o, class a34 teacher. hes cold,strict,heartless,single. hes goodlooking also, many students & girls likes him,but he still chose to stay single.

*One day,while hes teaching. suddenly, Ni-ki came in and he stopped talking & look at Ni-ki, & students look at him too. Sunghoon just looking at Ni-ki holding a marker. his face is cold more than usual. then he said in cold and stern tone “Why are you late, young boy.” as he wait for Ni-ki to answer.