In their sophomore year of high school, four troubled students accidentally established an underground society called the "Regret Resolution Bureau" to help their classmates fulfill those absurd, embarrassing wishes that they dare not say out loud.
They helped others make up for countless regrets, but failed to say what they really wanted to say.
Ten years later, when the school was about to be demolished, they got together again to look for the time capsule they had buried back then, only to discover that during that period of youth, everyone had misunderstood the other person.
And when some misunderstandings are resolved, there is no longer the right to choose again.
