承翰為了和心儀的女孩一起坐遊覽車去校外教學必須把通知單給家長簽名。 因為媽媽工作忙碌又情緒不穩定的原因，承翰不敢找媽媽簽名 。因此開啟了尋找親生爸爸的旅程，旅途中遇到了形形色色的人，彷彿踏入成人的花花世界。
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In order to go on the field trip with his crush "Wang Shin-Ni", "Wang Chen-Han" has to get his reminder signed by his parents. He cannot give it to his mother "Chen Li-Hua" however, not only because she is busy, but also emotionally unstable. One day, Chen-Han heard details of his real father from his mom's conversation: A shade, Blonde hair, Flowers on his T-shirt, and a pair of little eyes. With this info he begins his journey to find his father. On the way he met a man running a food stand, a man running a drink place, a lady in a betel nut store, and a mysterious man at the park. All of whom may have clues on his father's whereabouts.
