A story of regrets and second chances. The protagonist receives a letter from her future self, on the first day of the second year of high school, detailing events that will soon occur and the choices she made at the time which in retrospect feel like mistakes. The letter implores her to not repeat them.
The time travel aspect is essentially just a gimmick, a bit of flair to make the show stand out. For the most part it’s a normal, realism-styled school life drama/romance that takes the uncommon step of dedicating a portion of each episode to showing how its characters (may have) ended up a decade later.
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