Summary
We were summoned as a class to another world. Apparently, our entire class was chosen as heroes to defeat the Demon Lord targeting this world. Each of us received one hero skill. The skill I received was [Necromancer], which only allows me to make low-level undead, or my Servant. It was the weakest and most useless skill in the entire class, and I was banished as a “worthless”. However, my skill soon advanced to the next stage, evolving into the strongest skill!