Mikkakan no Koufuku

Kusunoki once believed he was meant for a meaningful future despite being isolated as a child. Now in his early twenties, he's an unremarkable college student without ambition, direction, or financial stability. Upon discovering that he can sell the remaining years of his life, he learns their value is minimal. He decides to sell all but the final three months of his life. The story explores whether this decision has ruined his opportunity for happiness or if it has somehow led him to it.