"You can't stop me you know..."

Disgraced reporter Adachi Tsuguru travels to the famed Aokigahara Forest, not as a tourist or out of a morbid desire to find one of its many corpses, but in search of the spot where one family died. The family he killed.

During his search, he stumbles on Yuna just as she is preparing to end her life.  She initially rebuffs his clumsy attempts at dissuading her before offering him a strange proposal: she will delay her suicide if he agrees to stay with her in the forest for the next seven days.  With no way of reaching help in time and unwilling to walk off and let her die, he agrees.

Now he has one week to change her mind...one week to save a life...and maybe, just maybe, on week in which he can redeem his guilt-ridden soul.