"If you engage with a virgin, you must take responsibility." In a moment of weakness, she finds herself in bed with her younger brother's friend, leaving her feeling utterly ensnared! "Weren't you the shy type? Weren't you meant to have no interest in women... especially not in me?" After experiencing something entirely new, Jiwoo feels a wave of embarrassment as Seunghyeon begins to behave as if he is her boyfriend… It seems her life has been turned upside down in an instant.