Lee Ji An is a single mother who has lived firmly with her confidence as her weapon. When she faces difficult situations, she always deals with the problem with her simple character and persistence. There's no such thing as a free lunch to her. Lee Ji An works as a construction site manager, who controls everything that goes on there. Her daughter is Lee Hyo Ri, and she is a medical school student. Lee Hyo Ri is the pride of Lee Ji An's life, and she means everything to her. Things change for Lee Ji An when her daughter begins to rebel, and Lee Ji An's first love enters her life again.

Her first love is Ryu Jeong Seok. He is a single father and lives peacefully with his son Ryu Bo Hyeon. Ryu Jeong Seok's peaceful life changes due to Lee Ji An and her daughter Lee Hyo Ri, as they suddenly barge into his life. His son Ryu Bo Hyeon is a young man who has known from an early age what he wanted to do, and he has run a flower farm for 6 years. He is a veteran in the flower farming field, but he begins to have new emotions due to Lee Hyo Ri. She parks in front of Ryu Bo Hyeon's house with a camping car.