讲述了K-POP顶级乐队顶级明星四季被迫开始了大学生活，在学校里组建了一支四人混合乐队，通过音乐成长的故事。
第一季最后一幕突然现身、疑似“死而复生”的郑进湾（李栋旭 饰）究竟藏身何方？他和郑智安（金慧峻 饰）将如何联手反击？一切未解之谜都将揭晓。
When high school teacher Na Aejoon shows up for work on an ordinary day, he never expects to bump into his favorite celebrity in the hallway. But when his school becomes a filming location for a show starring Choi Siyeol, his bias from the idol group A-One, that's exactly what happens! If that's not enough to give a fanboy a heart attack, Siyeol takes an interest in Aejoon and ...
《流氓读书会》是改编自同名超人气网络漫画，故事讲述讲述一位少年“尹载民”（黄旼炫 饰）虽然想要努力认真念书，但却只有打架才能让自己集中注意力，他便展开在全国最糟糕高中里组成学习小组准备高考的热血故事。
古老邪灵力量一旦苏醒，整个韩国将被黑暗吞噬。十二守护者将在领袖泰山（马东锡 饰）的号召下重新集结，与千年恶灵（朴炯植 饰）的生死之战即将展开。
