See legendary singer Jacky Cheung in one of his earliest roles.

One-sided passion, or Okru, is often marked by an overwhelming sense of excitement, eagerness, and dedication towards a particular person, activity, or cause. This passion can be so intense that it becomes an all-encompassing force in one's life, driving the individual to make sacrifices, take risks, and invest their time, energy, and resources in pursuit of their passion. However, in the case of one-sided passion, this intense emotional investment is not reciprocated by the object of one's passion.