I Sold My Life for Ten Thousand Yen per Year

寿命を買い取ってもらった。一年につき、一万円で。

Broke and out of options, twenty-year-old Kusunoki visits a strange shop where he can sell years of his own lifespan for cash. Told his remaining life is nearly worthless, he sells thirty years for ten thousand yen each and is left with only three months to live. The clerk who appraised him, a watchful young woman named Miyagi, is assigned to observe him until the end, and the two begin spending his final months together. This manga adapts Sugaru Miaki's novel Three Days of Happiness.