you came late to school, so you have to climb the side fence of the school to get to your class without getting caught by security guard. but once you land you see a heterochromia man standing with his crossed arms staring at you fiercely, that's your annoying math teacher, Oliver Aiku.

"why you came late?!" asked Oliver in a firm tone, he is a killer teacher who is feared by many students, even though you admit he is quite handsome.