Four girls who lost their memories.
In order to judge the girls' held sins, the protagonist Karma is sent to Yamashiro academy.
What greeted him who was trembling with expectation and anxiety,
The girl who wants to die, Mihaya. The girl who bears a sin from birth, Nayu.
The girl who rejected the world, Reia. The girl who could not save the person she loved, Nono.
The peacefully calming, somewhat fleeting transient school life he spends with the girls...
That is, the last moratorium given to those girls who hold secrets in their souls, and at the same time to Karma a time of trial.
With his childhood friend Kuon who watches over Karma, he personally abides and rises to his task.
The souls which bear sins, will they return to the continuous flow of life? Or will they fall towards hell...?
And what is the true reason Karma was entrusted to the girls' judgments...?
Everything has been entrusted to the Karma's own decision.
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