Nat is on an overnight class trip to Philadelphia, which is her first time in a big city without her parents. And it's a big deal because Nat's mom and dad are finally giving her the independence she's been longing for. But the trip is off to a bad start -- with one disaster after another -- and if things keep up, Nat's on track to lose her newfound freedom for good! Can she turn things arou…
Oh, no! Joni can't stop sneezing! Why? Because her nose is sensitive to dust. Once she comes into contact with dust, she will sneezing continously. In order tp stop sneezing, she must make sure her environment is clean, but can she do it ?
Due to his unhappy past, Ji-won fears his friends will find him boring. To become more interesting, he joins a gang called Extreme Challengers and copies their bad behaviour. Can Joni, Emilia, Mia, and the Chuuni save him before it's too late?
With poor time management skills, Joni's unable to find time to do her homework or practise singing. Can Mia, Emilia, Mikael, and Juliam help her plan and use her time wisely?