How did Gaia Memories originate? Why did Kamen Rider W begin fighting? To respond to Tokime's inquiries, Shoutarou calmly begins narrating the tale in hushed tones. He recounts his fateful encounter and bittersweet farewell with a figure he revered as his elder—his steadfast guide, Soukichi Narumi. Shadowy figures known as Dopants, wielding Gaia Memory powers, started emerging in Fuuto's misty alleys during twilight. A youthful Shoutarou became a sidekick to detective Soukichi, and despite being dubbed inexperienced, he followed his path with determination. Unaware that, beyond his investigative duties, Soukichi secretly operated as Skull, Shoutarou grew irritated with him over time. Then the Narumi Detective Agency received a call—a summons from Hell, urging Shoutarou and allies to an ominous evening of danger. When Shoutarou located Soukichi to hand over the 'trump card' granted by the enigmatic caller, what did he witness there? Shoutarou and Philip. The lone detective formed by two souls, and the night Kamen Rider W emerged. That entire tale will ultimately unfold, revealing the truth behind everything and beyond.
