A heroine (primarily magical girls, and super-heroines) in a desperate, perilous situation.
Unlike ryona, which requires active physical harm or suffering, heropin covers a broader range: the heroine may be cornered, captured, restrained, or otherwise trapped, with a focus on her terrified reaction to the danger rather than the harm itself.
Can include physical peril (bound, about to be attacked), mental/emotional distress, or sexual peril (imminent rape).
