The Witch Hunter System

After being struck by a truck like most protagonists, Vaan found himself transmigrated into a world dominated by the witches. Every man must learn how to service the witches to survive. As a prodigy in the art of pleasing women, Vaan lived a smooth two years since his transmigration. However, everything came crashing down in a heartbeat one day when his life was nearly taken, and Lady Eniwse, whom he served, went berserk.