American manga: Batman after graduating from the madhouse

Introduction: "The death of my parents left me with untold pain, and also created an endless abyss that I would gaze into every night. This never-ending grief turned me into a monster. This monster I called For...Batman" Lightweight Introduction: Why Does Nobody Suspect I'm Batman?In fact, the reason is very simple. If there is really a dark knight in the real world, who haunts the dark night, fights crimes, upholds justice, and scares countless criminals, can you imagine that he is Principal Wang...