Abe Sora is going to die, and he’s only seventeen years old. Diagnosed with ALS (Lou Gehrig’s disease), he’s already lost the use of his legs, which means he can no longer attend school. Seeking a sense of normality, Sora visits teen chat rooms online and finally finds what he’s been longing for: friendship without pity.
As much as he loves his new friends, he can’t ignore what’s ahead. He’s beginning to lose the function of his hands, and soon he’ll become even more of a burden to his mother. Inspired by the death poems of the legendary Japanese warriors known as samurai, Sora makes the decision to leave life on his own terms. And he needs his friends to help him.