It's a mix. The core of the story has roots in truth, but for the sake of entertainment and storytelling, certain aspects could be embellished or adapted.
It's most probably not a true story. Usually, such works draw from a combination of fictional concepts and maybe some loosely inspired events or themes, but not a direct account of reality.
It is indeed a true story. The book and subsequent adaptations draw from factual accounts and real-life circumstances to present a compelling narrative.
Yes, it is. 'Banner Under Heaven' is based on real events. It often depicts historical situations, real - life characters' experiences and the social environment of a certain period. Through in - depth research and compilation of historical materials, it presents a vivid picture of that era.