There are many entities that could be considered main characters. For example, the various SCPs like SCP - 173 and SCP - 096. These entities play a major role in the horror and mystery aspects of the story.
In the SCP Secret Files Story, SCP - 682 is quite notable. It's a large, reptilian - like being that is extremely difficult to kill or contain. It has an intense hatred for all life and is constantly trying to break free from its containment. Its unending attempts at escape and the various methods used to try and keep it in check make for some really engaging parts of the story.
The SCP Secret Laboratory story is centered around a strange and often disturbing world. It involves various SCP entities which are abnormal, often dangerous items, creatures or phenomena. The story usually takes place within a laboratory setting where researchers try to contain these SCPs, but things often go awry, leading to chaos and unpredictable events.
I'm not sure what specific university secret files are being sent in this story. It could be about a whistleblower trying to expose some unethical practices within the university by sending secret files to an authority. Maybe it's a case of a student accidentally getting hold of some restricted files and then sending them to the wrong person, leading to a big mess on campus.
Maybe it could be about hidden treasures. For example, the secret files might hold the map or clues to a long - lost treasure chest filled with gold and jewels.
In the 'scp secret laboratory story', there are the members of the SCP Foundation, such as the scientists and security personnel. They play a major role as they are in charge of dealing with the SCPs. Also, there are the SCP entities themselves which, although not traditional characters in the sense, are central to the story. And then there are groups like the Chaos Insurgency who are antagonists and cause problems for the Foundation's operations.
Once upon a time, there was a detective who stumbled upon some secret files. These files contained information about a long - forgotten crime syndicate. The detective had to keep the existence of these files a secret as he delved deeper into the mystery, fearing that the syndicate might come after him if they knew he had the files.
I'm not sure specifically what the'spg secret files story' is as it could be very context - specific. It might be about some secretive events, characters, or organizations within an SPG (whatever that stands for in this context) world. Maybe it involves hidden information, mystery, and a series of events that are gradually uncovered as the story unfolds.
Since I don't know the exact spg secret files story, it's difficult to say who is involved. It could be a group of investigators, spies, or employees within the SPG organization. There might also be antagonists who are trying to either keep the secrets hidden or use them for their own malicious purposes.
First, you need to make sure your story adheres to the specific requirements and guidelines for submission. Then, find the designated submission channel or person and follow the provided instructions carefully.