《龍王保佑》講述的是具有可以讀到世間萬物數千種顏色的絶對視角的女子沈清（李素妍飾演），和世界裡只有黑白兩種顏色的鋼琴演奏家馬風道（音譯）（在熙飾演）相遇，分享愛情和人生之美,尋找失去的父親秘密的現代版沈清伊的故事。 演員在熙在劇中將飾演雖然不允許一次出錯的演奏家，實力非常出眾,但感情不足的鋼琴家馬風道(音) ，在熙在劇中遇到給人生帶來最大危機的奇怪女人沈清，她將與觀眾分享愛情和人生的美,展現令人期待的浪漫愛情。
主要人物
風度周邊人物
其他人物
| 演員 | 角色 | 介紹 |
| 白寶藍 | 高耀貞 | 珠寶集團研發中心所長。 |
| 閔燦基 | 羅伊彥 | 風度的秘書。 |
特別出演
| 演員 | 角色 | 介紹 |
| 鄭燦 | 馬成在 | 馬風度的生父。 |
| 梁瀞疋 | | 清怡的生母。 |
| 金海仁 | 麻煩客人 | |
| 集數 | 播出日期 | AGB收視率 | TNmS收視率 |
| 韓國（全國） | 首爾（首都圈） | 韓國（全國） |
| 1 | 2019/01/14 | 8.2% | 8.2% | 9.5% |
| 2 | 2019/01/15 | 8.1% | 7.9% | 10.5% |
| 3 | 2019/01/16 | 8.9% | 9.3% | 10.3% |
| 4 | 2019/01/17 | 7.8% | 7.8% | 10.9% |
| 5 | 2019/01/18 | 8.2% | 8.4% | 10.7% |
| 6 | 2019/01/21 | 9.0% | 9.0% | 10.3% |
| 7 | 2019/01/22 | 8.7% | 8.1% | 11.9% |
| 8 | 2019/01/23 | 8.4% | 8.0% | 10.2% |
| 9 | 2019/01/24 | 8.1% | 8.2% | 10.4% |
| 10 | 2019/01/25 | 8.3% | 8.4% | 10.0% |
| 11 | 2019/01/28 | 8.9% | 8.5% | 10.8% |
| 12 | 2019/01/29 | 8.1% | 7.5% | 10.2% |
| 13 | 2019/01/30 | 6.3% | 6.4% | 8.7% |
| 14 | 2019/01/31 | 8.5% | 7.8% | 10.9% |
| 15 | 2019/02/01 | 7.8% | 7.4% | 10.1% |
| 16 | 2019/02/07 | 8.2% | 8.2% | 9.4% |
| 17 | 2019/02/08 | 7.4% | 7.2% | 10.1% |
| 18 | 2019/02/11 | 8.0% | 7.7% | 9.9% |
| 19 | 2019/02/12 | 7.9% | 7.4% | 9.5% |
| 20 | 2019/02/13 | 7.3% | 9.3% |
| 21 | 2019/02/14 | 8.2% | 8.2% | 9.4% |
| 22 | 2019/02/15 | 7.9% | 8.3% | 9.2% |
| 23 | 2019/02/18 | 7.5% | 7.1% | 9.9% |
| 24 | 2019/02/19 | 7.4% | 6.9% | 10.3% |
| 25 | 2019/02/20 | 7.9% | 7.7% | 10.5% |
| 26 | 2019/02/21 | 8.1% | 7.5% | 10.3% |
| 27 | 2019/02/22 | 7.9% | 7.6% | 10.0% |
| 28 | 2019/02/25 | 8.0% | 7.5% | 11.0% |
| 29 | 2019/02/26 | 4.1% | | |
| 30 | 2019/03/01 | 3.2% |
| 31 | 2019/03/04 | 7.6% | 6.7% | 10.7% |
| 32 | 2019/03/05 | 8.2% | 8.3% | 10.9% |
| 33 | 2019/03/06 | 8.6% | 8.6% | 11.0% |
| 34 | 2019/03/07 | 8.7% | 11.9% |
| 35 | 2019/03/08 | 8.5% | 8.7% | 11.0% |
| 36 | 2019/03/11 | 8.1% | 11.8% |
| 37 | 2019/03/12 | 9.5% | 9.5% | 10.9% |
| 38 | 2019/03/13 | 9.1% | 8.8% | 11.2% |
| 39 | 2019/03/14 | 8.0% | 7.7% | 10.8% |
| 40 | 2019/03/15 | 8.6% | 8.1% | 10.8% |
| 41 | 2019/03/18 | 5.3% | 6.0% | 6.3% |
| 42 | 2019/03/19 | 6.2% | 6.6% | 7.4% |
| 43 | 2019/03/20 | 6.7% | 6.7% | 8.7% |
| 44 | 2019/03/21 | 7.0% | 7.4% | 8.4% |
| 45 | 2019/03/22 | 6.5% | 6.7% | 8.1% |
| 46 | 2019/03/25 | 6.6% | 7.1% | 8.3% |
| 47 | 2019/03/27 | 6.9% | 7.6% | 8.0% |
| 48 | 2019/03/28 | 6.7% | 6.8% | 8.5% |
| 49 | 2019/03/29 | 6.0% | 6.0% | 8.2% |
| 50 | 2019/04/01 | 6.5% | 6.4% | 9.0% |
| 51 | 2019/04/02 | 7.3% | 7.3% | 8.2% |
| 52 | 2019/04/03 | 6.1% | 6.1% | 8.1% |
| 53 | 2019/04/04 | 6.8% | 6.8% |
| 54 | 2019/04/08 | 6.1% | 5.9% | 7.8% |
| 55 | 2019/04/09 | 7.5% | 7.2% | 9.0% |
| 56 | 2019/04/10 | 7.3% | 7.4% | % |
| 57 | 2019/04/12 | 6.7% | 7.3% | % |
| 58 | 2019/04/15 | 6.4% | 6.9% | 8.2% |
| 59 | 2019/04/16 | 6.2% | 6.6% | 8.4% |
| 60 | 2019/04/17 | 6.5% | 6.7% | 7.7% |
| 61 | 2019/04/18 | 7.3% | 7.5% | 9.4% |
| 62 | 2019/04/19 | 6.3% | 5.6% | 7.5% |
| 63 | 2019/04/22 | 6.3% | 5.9% | 7.6% |
| 64 | 2019/04/23 | 8.1% | 7.8% | 9.4% |
| 65 | 2019/04/24 | 7.0% | 6.9% | 8.3% |
| 66 | 2019/04/25 | 7.3% | 7.3% | 9.6% |
| 67 | 2019/04/26 | 7.6% | 7.8% | 9.3% |
| 68 | 2019/04/29 | 6.5% | 6.0% | 9.5% |
| 69 | 2019/04/30 | 6.3% | 6.2% | 7.9% |
| 70 | 2019/05/01 | 6.1% | 5.7% | 8.4% |
| 71 | 2019/05/02 | 6.8% | 6.8% | % |
| 72 | 2019/05/03 | 6.4% | 6.2% | 7.6% |
| 73 | 2019/05/06 | 5.8% | 5.5% | 7.8% |
| 74 | 2019/05/07 | 6.4% | 6.3% | 7.7% |
| 75 | 2019/05/08 | 6.1% | 6.5% | 7.1% |
| 76 | 2019/05/09 | 6.0% | 6.0% | 7.8% |
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| 平均收視率 | % | － | － |
| 特輯 | 2019/03/10 | 6.0% | | 6.5% |
| 4.5% | |
