一名聪明的乐天派黑帮成员受雇帮助一名海外犯罪头目击垮对手，却未料到会陷入两难的道德困境。

　　Hinano is a bullied and lonely school girl who has no other means to express her feelings but write them down. When one day she hurries in the school nurse's room…

<p>　　影片改编自畅销小说。<br/>　　一段失落的异地爱情<br/>　　一幕幕即将消逝的甜蜜回忆<br/>　　错过了的缘分，怎舍得成为半生遗憾?</p>