The moment the System bound itself to me, I opened my eyes to find myself locked in an interrogation room at Bureau 749.
The screen read: Ability Level: F. Threat Level: SSS.
Everyone thought I was the most useless experimental subject kept under lock and key by Bureau 749.
Until they discovered that I was the only one who could seal the Gate of Guixu, Bureau 749’s greatest secret.
F rank was a disguise deliberately imposed by the System.
SSS was the truth.