毛铭基（屈楚萧 饰）和傅真（邱天 饰）在拉萨相遇，并和子琪（马苏 饰）、李健（张宁江 饰）、达娃（金巴 饰）结伴前往珠峰大本营。历经各种波折后，毛铭基和傅真二人之间产生了纯粹且强烈的爱情，但两人都未在即将结束的旅途前表达爱意，他们最终能否知晓彼此的心意？
夜の街で出会ったうつろな女性と、秘密を抱える塾講師の幻想的かつノスタルジックな逃避行を紡ぐ「さいはて」。街から森、やがて海へと展開する2人の旅路と、まばゆい恋模様が映し出される。
讲述了在大学的青葱岁月里，学霸少女姚兰与社会少年王谦相识，王谦为了爱与责任努力学习考大学与姚兰共同成长，不料事与愿违追爱的路上荆棘遍布，历经坎坷终成眷属的青春爱情故事。
When Noah fell in love with Nick, she knew their relationship would never be easy. They're fire and electricity, and when they're together, every kind of sparks fly. After last summer, Noah thought their passion had grown stronger than their fear, but her life is about to turn upside-down again now that she's starting university. Moving again while maintaining her relationship with Nick will be a difficult hurdle, with their age difference, campus life, dangerous parties, and inner demons stalking them both, reminding them of all they still don't know about each other. No matter how hard they try, there will always be wounds that won't close. Is Noah really prepared to overcome her fears and truly trust someone again? Will Nick be able to put his past behind him and keep his heart open? Or are they doomed only to burn each other's worlds down?
改编自新海诚创作的同名动画电影，讲述了一段跨越时间与距离的青涩爱情与成长故事。
