3年C班出轨了。

本剧以随着“18岁成人”的实施，不用父母的同意就能结婚的高中3年级的班级为舞台，描绘初恋，怀孕，结婚，以及出轨，前所未闻的学园出轨悬疑。和同学出轨的【高中生出轨】，监护人之间出轨的【PTA出轨】，甚至到禁止的【教师和学生的出轨】…而且，这种交错的想法，和某个事件联系在一起。Set in a high school senior class where students can now marry without parental consent due to the implementation of the new \"18-year-old adulthood\" law, this unprecedented school suspense drama explores first love, pregnancy, marriage, and even infidelity. Not only are the students of Class 3-C involved in affairs, but so are their parents and teachers...!? The protagonist of this work is Uemura Aoi, who transfers into Class 3-C at an elite high school after her parents get divorced due to her father's affair. The story depicts how she reunites with Tachibana Iori, a male student who was her first love and is now married to another classmate, and how they fall into an illicit affair. Their romance eventually spirals into a scandal that engulfs the school and their parents, leading to a gruesome tragedy.