故事从传说中的夸克族与暗黑族开始延伸。善良与邪恶形成两势力对抗，加入萌学园里的萌骑士团结在一起保护结界。萌学园里的魔法预言书蕴藏着什麼天大的秘密？奈亚公主及忧伤艾瑞克纯纯的情愫正在发酵，误闯萌学园的坚尼，会为萌骑士团带来什么冲击？颠覆你对魔幻世界的想像力，一起探索萌学园体验奇幻旅程。
唱片业高阶主管柏翰与助理安以琪为了帮天后歌姬寻找主打歌〈最悲伤的事〉的原作曲与作词人的下落，在乐坛前辈吉哥与小猫女的神秘帮助下，揭开K张哲凯与Cream 宋媛媛这对恋人的悲伤爱情故事，以及过程中被牵连的暖男牙医杨祐贤和摄影师Cindy 的相爱相杀。
A drunken call of nature on a generator turns just another night out for Frank into a nightmare. At hospital he's told that tests show he has a heart condition and may not make it to the weekend. With these words ringing in his ears, he sets out to drink and drug himself into a stupor, only to be visited by his younger self and challenged to answer the question: "What is the point of Frank Gallagher?" On one of his regular trips home from university, a little bit of Lip's other life makes an unwelcome appearance in Chatsworth, throwing Mandy into uproar and culminating in a knock-down, drag-out fight in The Jockey with shocking consequences. Elsewhere on the estate, Lillian proves to be quite the madame when she settles on an unconventional way to turn her spare rooms into a little extra cash.
