Tetsuyuki Iryo, a college student with his late father's debt, works part-time at a hotel in Osaka, and in his room there is a lizard "Kin" who is alive even if he is hit by a pillar with a nail. You may meet your lover, Yoko, you may be distressed by dating another man, you may be happy to have a tip bounced at a part-time job, or you may be seriously injured when found by a collector. In various events, Tetsuyuki's heart becomes aware of the lizards that have been nailed. A brilliant harvest of youth literature, where Tetsuyuki's melancholy, anguish, and passion for living his life sincerely are reflected in the transition of the year. "Why was I born into a human being?" The melancholy, passion, and love of college students