Character: Hwang Tae Kyung

Quote Explanation: Mother Hwang Tae Gene comes to the son to speak and only in the end of the conversation realizes that something is wrong. Speech in conversation (though it even fight) was just about the identity of the son to the mother, so Tae Gene hurt that mom is not even able to remember his birthday, and this phrase, he seems to be saying that she has no right to be called his mother, even if they did not know when gave birth to him.