一次意外的身体互换，40岁的中年男人重回校园，面对新时代的校园生活和周边环境。一个15岁的少年一直盼望自己快长大，一直喊着要自由，真的一夜之间长大了，却又开始怀念自己的中学生活的故事。
遇播放卡顿或无法播放时，可切换线路播放
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