| Cha Ji-Won is a UDT officer of the Navy Special Operations Force. He is positive and has personal charm, but he falls into a desperate situation due to a friend's betrayal. He goes through numerous life or death situations. Cha Ji-Won then enters into a fake marriage with Swan to hide his identity. Through the bright persona of Swan, Cha Ji-Won falls in love and regains his trust of others. |
| Name | Character | Episodes |
|---|---|---|
| Kim Tae-woo | Kim Ji-ryoon | 20 |
| Kim Kang-woo | Min Seon-jae | 20 |
| Song Jae-rim | Seo Woo-jin | 20 |
| Choi Jung-woo | Seo Jin-tak | 20 |