Three Days of Happiness by Sugaru Miaki

HOW MUCH IS LIFE TRULY WORTH?Kusunoki used to believe he was destined for great things. Ostracized as a child, he held on to a belief that a good life was waiting for him in the years ahead. Now approaching the age of twenty, he’s a completely mediocre college student with no motivation, no dreams, and no money. After learning he can sell his remaining years—and just how little they’re worth—he chooses to divest himself of all but his last three months. Has Kusunoki truly destroyed his last chance to find happiness…or has he somehow found it?