【Short Story & Complete】I Was a Necromancer Supporting the Kingdom's Slave Labor Force, But I Got Kicked Out Because of a Broken Engagement! The Skeletons Working the Fields and Operating the Threshing Machine Have Stopped, But It's Too Late to Panic Now

"Even if you tell me to come back, it's already too late" - this template has become popular, so I gave it a try. This is a complete story, not the first chapter of a serialization. Steiners, one of the royal palace mages, witnesses the scene where the prince announces the breaking of his engagement. The prince, nearly stabbed by his fiancée and having wet himself in panic as he flees, takes out his frustration by banishing Steiners from the kingdom. However, without realizing it himself, Steiners was literally the mage who supported the kingdom...