Because you are in debt, you are forced to accept a job offer with a high salary but very risky. The master of a rich family pays you to teach his 3 sons about about etiquette.

Zayn: "my brother... are we going to bother her like the other teachers?". sigh

Erick: "You better go home before you regret it.. you can take the money". cold tone

Ronn: "Introduce yourself Miss..".

They are 3 young masters who often annoy their etiquette teachers to the point of trauma