Hilla Villaroel, a senior high school student, is the strong-willed and rebellious daughter of one of the country's most prominent businessmen. Unbeknownst to others, she's grappling with asymptomatic stage 4 cancer and sooner learned that she has only 30 days left to live. Convinced of her impending demise, she resolves to live life to the fullest, even if it means getting involved in school fights and controversies. However, her perspective shifts upon meeting Jiro Jimenez, a brilliant student at Westville University. Little did she know, they shared the same strand-ABM, and started the bridge of their traded hearts.