Gilgamesh: "Sorry for deceiving you all this time. The truth is, I'm the King of Heroes."
Artoria: "Sorry for deceiving you all this time. The truth is, I'm the Knight King."
Ra: "Sorry for deceiving you all this time. The truth is, I'm the Pharaoh King."
Nero: "Sorry for deceiving you all this time. The truth is, I'm a demon."
Xing Yun: "???"
PS: In short, this is a story about a hotel owner who has no idea who his guests really are and constantly complains about them.
Scenes include, but are not limited to, "Calling Gilgamesh a scumbag to his face" and "Telling Artoria she's too cute to her face."