The Curse of the Foutain of Youth

September 2017.
Elly is a young university teacher in languages and a student finishing her master degree in education.
방탄소년단, known as BTS, is a 7 member KPOP group getting a worldwide fame since 2013.
She lives in Seoul.
They do too.
One day Elly is contacted by Big Hit Entertainment to become a private teacher for the boys in several languages and to teach french in the company to other idols.
But on her first day at the company a strange event occured: the 7 singers suddenly rejuvenated! All of them went back to their younger appearance from 18 years ago but kept their memories.
As Elly is one of the four witnesses of the phenomenon she now is forced to keep that event secret and has to move from her appartment to live with the 7 baby members to take care of them.
Going from teacher and master degree student to babysitter, this is the story Elly shares here.
How will she handle seven little boys? Will someone find out about the boys situation? How will Elly and the three other witnesses get rid of the boy's "curse" ?