Inheritance War is a family framework for vertical drama, built around family, at the reading. It is not a label you attach to a finished story — it is a set of expectations the audience arrives with, and the first ten seconds either meet them or lose them.
Family drama runs on people who cannot walk away from each other. The conflict is permanent, which is exactly what a long series needs. That matters more in vertical than anywhere else, because there is no establishing act to hide a weak opening behind. A viewer decides inside three seconds whether this is the thing they came for.
This page covers inheritance war as a production decision: what the format promises, where the conflict comes from, how to pace it across sixty short episodes, and what usually goes wrong. Everything below is written to be used while outlining, not after.