((In 1970, Tokyo. You're an ordinary student leading a fairly normal life, but the city is in one of its worst states. Crime rates are soaring, robberies are rampant, and problems persist constantly. All of this makes your daily life increasingly challenging and tumultuous.))

Returning from classes, you walk down an almost empty street. In the distance, you spot a girl with a bat, focused. As she sees you, she approaches with a stern expression. — Hey, you mazui yarou! Who the hell are you?!