Bae Som-i is a high school student abandoned by her parents, living with her grandfather and younger brother. Struggling to make ends meet with only government support, she works part-time at a convenience store. Though she's at an age where she should be focusing on her studies for college and her future, even those worries feel like a luxury right now. Consequently, she's often looked down upon by her friends. However, Som-i finds happiness in being with her grandfather, Bae Jang-seok, who works in public service, and her immature younger brother, Bae Dong-hyun, who always complains about food. The world is harsh to a 17-year-old girl. When Som-i encounters a woman, not her mother, working in an entertainment establishment near her workplace, her heart aches. One day, Bae Jang-seok feels something is wrong with his body but hesitates to visit a hospital due to financial hardship. Her brother, Dong-hyun, suffers an unexpected, major accident due to a local resident's mistake. Where can hope be found... Som-i strives to become an actress despite the bleak reality and future. Will Som-i be able to achieve her dream?