30 year old Neo has spent his adult life resenting his old high school colleague Maki. After a car accident, Neo's travels back to his time in high school, and is given the chance to resolve his problems with Maki, and save his own life.
The concept was fun, and there were strong elements in the plot, but they were not well fleshed out (esp. the amnesia angle at the end, and how much Maki really knew), ultimately making the story lackluster and boring. Character development was elementary, and really disliked the older Neo, so came out not caring much for where the characters ended up.
Zero Kyori