The Ruler's Seal
Though Keroberos was sealed, Tennoji reveals his true plan as he fuses with the sealed Undead to become all powerful. However, once Tennoji is defeated, the Giraffa Undead murders him and takes the Keroberos card, allowing the true Battle Fight to begin.
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More from this season
S14 E1
The Indigo Warrior
Whilst investigating the urban legends of the Undead, Kotaro Shirai stumbles upon the two Kamen Riders of BOARD.
S14 E2
The Mysterious Rider
BOARD is in pieces. Left reeling by Tachibana's betrayal, Kenzaki is forced to respond to another Undead attack.
S14 E3
Their Secret...
Hirose manages to get access to Chief Karasuma's hard drive. While they search to find him, another Undead attack brings Tachibana back to the frontlines.
S14 E4
Immortality's Mysteries
Tachibana reveals the truth behind the BOARD attack, and warns Kenzaki that the Rider System will destroy his body.