Confronting a mysterious enemy, the Pteranodon Yummy, Kamen Rider W receives aid from Ryu, who has infuriated Akiko by being too busy to attend her wedding! Akiko demands to know why he even became a Kamen Rider in the first place and the Pteranodon Yummy as it uses the Memory Memory on her to give her the answer to her question. Meanwhile, at the Kougami Foundation, Kousei Kougami talks of the most avaricious man in Japan, Oda Nobunaga, whose final resting place was found. With Doctor Maki overseeing the process, Kougami commissions the creation of a Cell Medal homunculus based on Nobunaga himself. Later, Kamen Rider Core begins to destroy the area as Kamen Riders OOO and W team up to fight the enemy. However, Kamen Rider Core proves too powerful and the two go underground to destroy the Gaia Memory’s source of power to even the odds.
桐山漣
as Shotaro Hidari / Kamen Rider W
菅田将暉
as Philip / Kamen Rider W
木ノ本嶺浩
as Ryu Terui / Kamen Rider Accel
吉川晃司
as Sokichi Narumi / Kamen Rider Skull
立木文彦
as Gaia Memory / Kamen Rider Core (voice)
渡部秀
as Eiji Hino / Kamen Rider OOO
中川真吾
as Shun Makura
山本ひかる
as Akiko Narumi
なだぎ武
as Mikio Jinno
なすび
as Watcherman
腹筋善之介
as Santa-chan
板野友美
as Queen
