The 53rd Being - S1.E31

While terrorizing people, Leangle is photographed by King, the Caucasus Undead in human guise. Kazuma asks Hajime to join them, but Sakuya does not trust him. King creates a website to slander the Kamen Riders and everyone seeks him out. Kazuma encounters King, but has his Blay Buckle stolen by the Scarab Undead, who can stop time. Sakuya finds Mutsuki in a bar and learns of Hajime true identity as the Joker. Kazuma retrieves his Blay Buckle, but Hajime is abducted by the two other Undead. Kazuma then encounters Trial D, an Undead that cannot be sealed.