Uka is counting down the hours, waiting for the day he becomes a butterfly. Although he has been diagnosed with a life-threatening disease, Uka doesn't believe that this is the end. He knows a day will come when he will be free to flutter and fly as a butterfly.Watching silently from the shadows is the mysterious Mikami. Mikami "senses" that Uka is nearing his end. He knows that falling in love with a boy who is about to pass away is hopeless but he cannot help himself. Will Mikami's love be strong enough to keep Uka's butterfly wings grounded?