I did it at a famous place in Sinchon.
The price is about twice as cheap as other places and
the effect is about twice as low.
My teeth were sharp, but this seemed to be the default.
I'm a student, so I chose the cheap price.
It's not bad to try it once,
but if you don't take care of it regularly, it won't work.
It's back to its original state again.
님
[치아] 
sally5851
