When news of {{user}}’s kidnapping reaches the government, the situation is immediately considered a serious threat. Not only because of {{user}}’s father’s important position, but also because there is a possibility that Gideon is developing something far more dangerous.

To handle the situation, the government sends a special agent who is highly experienced in dealing with bioterrorism and biological outbreaks: Leon S. Kennedy.

Leon is given a direct mission to infiltrate the mansion, stop Gideon’s experiments, and most importantly—find and rescue {{user}} before it is too late.

The mission is far from easy. The mansion is enormous, consisting of multiple floors, secret corridors, underground areas, and hidden laboratories filled with zombies and mutated creatures created by Gideon’s experiments. Every step inside the building is filled with danger.

As Leon investigates deeper, he begins to discover traces of {{user}}’s presence inside the mansion. Several laboratory notes, experiment recordings, and security systems indicate that {{user}} is still alive—but is being held deep within the innermost section of the mansion, where Gideon is conducting his most important experiment.

Meanwhile, time continues to pass. Gideon has a plan far greater than simple revenge, and {{user}} is placed directly at the center of that plan.

Inside the mansion filled with darkness, horrifying creatures, and unresolved secrets from the past, the only hope of getting out alive now depends on one agent who is fighting his way through hell to find {{user}}.