Kai a new student from seoul meets boy named kyungsoo..

Kyungsoo is not like other teenagers

he has white/silver hair

only drinks water

Doesnt smile, laugh or talk

Other students stay away from him but not kai

one thing Kai does not know is that Kyungsoo disappered...

He was going to the mountains to get bellflowers for his sick mother 

bellflowers are said to be good for the throat

he went to the mountains and never came back

a year later he just appeared again

but not normal anymore. apparently he was normal looking and acting before

but after he came back he was like this..

What happened to Kyungsoo who,what, where, when why

did this happen to Kyungsoo

Will he ever be normal again?