The show is so good that I don't understand why it gets a low rating from 7.6% to 2.5%.
But it could also be because the show "real talks" the show truly reflects what happens in real life and the various consequences/scenarios that occur after those instances.
Some international fans even thinks that, it is because this is exactly what they are doing to each other ! Push one person to its limit until someone commit suicide.
But I hope they get to see better ratings soon since the story is so good