Hourglass of Summer

With summer vacation just around the corner, Kotaro Makimura commits himself to asking out his classmate and crush, the kind and beautiful Kaho Serizawa. However, Kotaro wakes up the next day to find that he has somehow jumped forward in time to September 1st, the end of summer vacation. Confused as he heads to school, Kotaro finds his classmates in an atmosphere of mourning and is told a horrible truth. Apparently, he and Kaho became lovers over the course of the summer until Kaho died in an ac...