Why is Deruk called Grandpa Lu?

Because he is the boss of Mond City, he is called Grandpa by players.

Diluk, known as Grandpa Diluk, is the big boss behind Dawn Winery and the night hero of Mond City. Of course, no matter from what point of view, in fact, Diluk is also a proud role. Although I love Mond deeply, I don't want others to know how much I love Mond because of my personality.

Game background setting

Here is the fantasy world "Tiwat" where seven elements meet. In the distant past, people were endowed with the power of driving elements because of their belief in gods, and they could build their homes in the wilderness.

Five hundred years ago, the collapse of the ancient country changed the world. Now, the disaster sweeping across the mainland has stopped, but peace has not come as scheduled.

As the hero of the story, you drifted from outside the world and came to the earth. In this vast world, I will travel freely, meet my companions and find the seven gods who control the earthly elements until I am reunited with my lost blood relatives.