本片改编自同名漫画，讲述了女大学生木之下茜（山下美月 饰）原本和时任男友古川拓马共同游玩网络游戏《Forest Of Savior》（简称FOS），但是双方的恋情随着拓马劈腿喜欢上游戏女网友正式告吹。被分手失恋后的茜对发展恋爱关系产生阴影，却意外在FOS线下活动期间遇见并认出同个游戏公会的玩家兼高中生山田秋斗（作间龙斗 饰），双方由此从网絡友谊关系逐渐发展成恋情。
‘What would you do for your worst enemy’ Chimo and El Rubio two teenagers from a run-down neighborhood, victim and executioner, bullied and bully, whose lives are marked by enmity and resentment. Chimo sees an opportunity for revenge and end years of suffering. However, fate has an unexpected twist for them.
