Top tae and bottom kook (taekook had a arranged marriage and tae is a cold husband and kook is a sweet uni student )one day kook failed in his test and principle called tae and told him everything and tae becomea very angry and punished kook with spanking and ear twist and he started to tutor kook and made a rule than when kook say correct answers which he asked he will get his banana milk and if he says wrong answer he get ear twist and spanking in his butt on the First day kook say soo many wrong answer and he got his punishment (his ear pulled and twisted hard by tae and tae spank kook's butt really hard ) then kook started to improve him self and it make tae very happy but whenever kook got a wrong answer he get his punishment and one week before kooks exam tae was explain him his chapter but kook was lost in his own world when tae saw that tae ask kook to solve problem but kook says he doesn't know the answer tae twisted his ear unitill he clearly solve the problem When tae takes test papers kook get 2 spanking and earpulling for each wrong answers after all his tutor kook got 99% and tae become really happy