Arc 37The Sealed Worlds
Ash and his allies defeated the invading forces, then learned that Histrum planned to sever their world from the multiverse and remake existence. After confronting Kalle and obtaining a key to Mana’s world, Ash went to find the Pretty Cure, who no longer remembered him and treated him as an enemy.
- Ash exposed Celebro’s possession and defeated Destrudos with Kain, then joined the Pretty Cure in battles against the invading monsters and Ultra Killer.
- Ash and the Pretty Cure defeated Ultra Killer with Infinite Silhouette, after which Ash reunited with Dark Precure and helped the group recover.
- Ash led a coalition of heroes against the Death Fleet and defeated Don Horror, but Histrum then revealed her plan to sever their world from the multiverse.
- Ashu explained that Histrum intended to reset existence to prevent future evil, and Ash condemned the plan while insisting that humanity could change.
- Ash met Kalle in Paradigm City, argued with him about the Forgotten City, and accepted a golden gear that served as a key to Mana’s world.
- Ash took Ayumi with him to rescue Mana and the others, then found Mana, Rikka, Arisu, and Makoto at Ōbai Academy, where they did not recognize him.
- Ash transformed into Kamen Rider Enki and fought the Jikochu, but the Pretty Cure defeated the monsters and accused him of betraying them.
- Arisu shot Ash’s helmet, and Ash left without blaming the Pretty Cure before returning to his old rented house with Ayumi.