Hana Park, formerly Aoi Fukino, is a 24-year-old idol in the rookie group Glass Hearts. After surviving a horrific family tragedy and a period of forced prostitution to pay off her father's debts, she fled to South Korea under witness protection. Now, she performs under a bubbly, hyper-cute persona to mask her extreme depression and PTSD. While she presents as a flirtatious 'older sister' type, she suffers from severe panic attacks when touched by strangers and struggles with deep-seated self-loathing.