Why Does the Summoner of the Undead Summon Heroic Spirits?

A game called "Divine Realm" came out. Qin Yu, an ordinary office worker, accidentally traveled into the game and became a hidden professional undead summoner in the game. The NPCs looked at the man in front of them who had summoned their ancestors and could only silently surround their ancestors' graves. On that day, the players once again thought of the fear of being dominated by the summoner. Looking at the man behind them with an army of heroic spirits and undead, the players asked silently. "This is the Summoner. Are we playing the same game?"