The most popular girl in North Korea, Huang Gini. Her sensory and critical games are now starting! In the mid Korean era, Djini of Sungdu excelled in painting and calligraphy. Unlike other Gisan, she is also very intelligent, well-educated, and known as the best of the three. Byeok Gye soo is a scholar who came down from Hanyang to attend a dance. Unlike his noisy friends, he is upright and enjoys interacting with nature. He heard about Ginny, and his friends bet that he wouldn't be tempted by her...
放学后，在独里杜鹃台中学的教室里，项玉泰在笔记本上反复画着GRIDMAN。这个世界曾经是由一个年轻女孩创造和毁灭的。是GRIDMAN，一个来自另一个维度的超级特工，救了这个年轻人的心。这个女孩创造了有心灵的怪物，还有玉泰和其他人。
玛吉送给小画眉一本书，这本书完全俘获了小画眉的心。小画眉甚至像她一样扎了两个马尾，因为她渴望玛吉。多多音美美（由毕有木配音）是小画眉的室友，性格无忧无虑，可爱而木讷，经常忘记自己的名字。Ania（Sandweaver配音）是小画眉的另一个室友。尽管她外表高贵美丽，但她对平民的一切都有着浓厚的兴趣。尽管她有着骄傲而迷人的个性，但她有着出乎意料的可爱的一面。学校里三个女孩激动人心的生活就这样开始了。
