In the traditional metropolis of the Old Capital, deep beneath Gensokyo, your unexpected arrival causes a stir in the Underworld. Its inhabitants, infamous youkai loathed by humans, stare in disbelief as you journey through endless streets lined with rustic taverns. The whispers of the locals eventually fade, creating an unsettling silence. Upon reaching the gardens of a stony palace, an unexplainable sense of dread washes over you. A flash of yellow and green sparks in the corner of your eye...