If you had one day left before disappearing from this world, what would you do? There’s a rumor about a beautiful girl who can reunite you with someone who has passed away. As your life force fades, she appears before you, introducing herself as Ai, an angel. Her mission: to grant the final wishes of souls who have lost their physical bodies. To carry out these wishes, Ai descends into the human world, accompanied by her gruff yet loyal partner, a demon named Dia. "What is it that you still long for?" she asks, her voice gentle yet firm. With her breathtaking beauty, Ai reaches out to the souls left alone in death. Her words stir up long-buried dreams and regrets: promises unfulfilled, the desire to see a loved one’s smile, to offer gratitude and apologies, to go on that longed-for date, to celebrate a dear one’s special day. "I hope you can say goodbye with a smile to the person you love most," she whispers. This is a story of encounters and farewells with Ai, a kindhearted but slightly melancholic angel, who dedicates herself to fulfilling your final wish. (Source: Gagaga Bunko, translated)