Chelsea Rea Perez, known to be the Ms. Pretty Nerd of Clifford High University, dwells herself with the squad she never expected she'll treat as her family. She believes that no one will always stay with her as she's boring, fussy, and a stick-in-the-mud kind of person. She clashed with a venturesome, happy-go-lucky Clifford Duke Rodriguez, the heir of their school who sees her as a rival in everything he does-whether at school or in his personal life. He followed and stayed with her out of curiosity. He becomes obsessive about their rivalry, which leads him to unravel the secrets that fate is slowly revealing. Will their life change because of love and friendship, or will they just stay as each other's possessive counterparts?