Kanno Hotori was living an ordinary life until two strangely dressed young men arrived at her door with a message she could not have prepared for: she has one month left to live. They are Reapers, they say, and they have come to claim her soul at the appointed time. Hotori agrees — but she has one wish she needs to fulfill first. Somewhere out there is the person she has loved from a distance and never told. She wants to say it before the month ends. This is the story of how she lives those final days, and what the Reapers come to feel about them.