2018年9月 —— 平凡的高中生们正在为各自的前途奋战。 明光院景都正为了梦想的柔道金牌而努力,然而,他在比赛中受伤,从此再难踏上柔道选手之路。明光院心灰意冷之时,神秘的青年突然出现并拿出手表及驱动器…… 此外,班级里也突然来了一位名为海东大树的转学生…… 错综复杂的阴谋,层层交叠的陷阱。等待着明光院、庄吾还有月读的,究竟是什么样的未来?In an alternative timeline of 2018, a group of high school students is pursuing their dreams. Sougo Tokiwa wants to become a king, and Keito Myokoin wants to become the judo champion while trying to impress his crush, Alpina Tsukuyomi.