In this episode, the true identity of Kamen Rider Calibur is finally revealed and it turns out to be none other than Hayato Fukamiya (富加宮 隼人 Fukamiya Hayato), an father of Kento Fukamiya.

As you might want to know, he was portrayed by Mitsuru Karahashi (唐橋 充 Karahashi Mitsuru), who was well-known for portrayed Naoya Kaido in Kamen Rider 555, Juzo Fuwa in Samurai Sentai Shinkenger, and the human form of Musashi Damashii in Kamen Rider Ghost.

This episode also marks Kento Fukamiya's first on-screen transformation into Kamen Rider Espada, the debut of Saber Dragon Eagle, and Zooous's Megid form.

https://youtu.be/nuUIj63u7Pk

In the next episode, the Kamen Rider Kenzan (仮面ライダー剣斬 Kamen Raidā Kenzan, lit. "Sword Slash") in, with his true identity is Ren Akamachi (緋道 蓮 Akamichi Ren), made his debut. This is also featuring the debut of the Kobuta 3 Kyoudai Wonder Ride Book, and Saber Dragon Eagle Buta 3.

Looks like Touma didn't aware of this fact before a new swordsman appeared before him. Ren Akamichi, a hot-headed individual compared to Touma and is significantly younger than him. However, he seeks Kento's recognition and discovers that Touma is his childhood friend, creating a fierce rivalry between them. Meanwhile, Storius and Dezast began to make their moves upon Touma while Rintaro and Mei encounter Zooous...