I'm Guarding the Seal Here, You Say I'm a Devil

More than 400 years ago, John traveled to this world. Become a commoner in a village in Sakte, a small war-torn kingdom. After more than ten years of struggle, he finally became a gravekeeper of the Church of the Kingdom of Saket. After fighting with the Crusaders for decades, after the war, he was assigned an important task by the church to go to a wilderness to guard the sealed blood count. Time flies, stars change, and more than 300 years have passed. This long time has made people forget their hatred of foreign races. The newly elected reformist saint decided to release the vampire count in order to increase the vampire's support for her. The mission was met with strong opposition from John. After several times of persuasion, the Saint saw that he was unable to make progress, so she decided to call on human adventurers from all over the country to go crusade, and the Saint herself was also in the team. On the castle built on the sealed land, John looked at the humans who came to attack him and fell into deep thought. Since you want to break that seal so much, then break it. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.