面对爱情的逝去，她开始封闭自己，直到像阳光般的他出现，才融化了原本冰冷的心灵。一场如同向日葵般的恋爱，呈现在她面前……海军大尉江硕民（权尚宇饰演）为实现父亲的遗愿当海军司令而参加了海军。他在妹妹秀贞（金晶和饰演）实习的医院与外科医师全海伦（明世彬饰演）像命运一般相遇之后，开始在她的周围周旋，而海伦却一直思念着由于交通事故而死亡的大学时代的恋人，对其他男人毫不关心，承赫既是全海伦的学长，也是医院院长的儿子。他虽然早已喜欢上了全海伦，却因朋友宇抢先向她表白了心迹，只好在远处默默地注视着她，宇去世之后，承赫为了得到全海伦，守在她的身边。坦率而喜欢感情用事的硕民经常叫海伦惊慌失措，但自从硕民在部队陷入困境之后，她才明白自己喜欢上硕民…

Lieutenant senior Kang Seok-min(Kwon Sang-woo) joined the navy to follow in his dead father's footsteps, with the dream of becoming an admiral. At the hospital where Seok-min's sister, Soo-jin(Kim Jung-hwa), a young doctor who is still an intern, Seok-min runs into Hae-rin, a female doctor at the hospital. He tries to get close to Hye-rin(Myung Sae-bin) but she has shut others out since her boyfriend from college died. Hae-rin's senior from the medical school Seung-ha, who is also the son of the director of the hospital, has been in love with Hae-rin since the college days. However, he could only love her from afar since his friend confessed his love first. After the death of his friend, Seung-ha plays the role of a guardian for Hae-rin, but only to win her love. Seok-min's honest and yet impulsive behavior throws Hae-rin off. Nevertheless, ever since Seok-min gets involved in a critical situation on the naval base Hae-rin finds her heart drawn to Seok-min...