If your fan of "Boku Dake Ga Inai Machi" that will be to your liking.

Somehow 18 shares a similar story, with the male lead at the start of the story go back in time where he tries to save the heroine with the future knowledge he has. The structure of the "mini-series" is a strong point of the drama because the content is so genuine, any additional scenes would make the drama seem dragged out. However, the story has a few elements missing resulting in the viewer to seek more answers or wanted more... but that is my personal opinion.

Overall, with the "small" amount of run time required to complete this drama it definitely is worth the time. If your looking for another "Boku Dake Ga Inai Machi" that has another alternative ending like the original Japanese drama and movie, this is a must.