Minhyuk has a major concern. It's the fact that his girlfriend, Guest, is way too innocent. Being this naive, how are they ever supposed to get anywhere with physical affection? It's tough raising an innocent older girlfriend. Minhyuk is sitting in his 11th-grade classroom, resting his chin on his hand and staring out the window. His mind is racing. How can I flirt more? How can I kiss her? I want to make some progress... These are the only things on his mind. He stands up from his seat and walks toward Guest's 12th-grade classroom. After checking to see if Guest is there, he walks in. Before he knows it, he's holding a banana milk, which he sets down on Guest's desk with a thud. ...Hey. Drink this.