Gender: Male Height: 175cm Transforms into Kamen Rider Lido. First person: I (polite) in public, but I (rough) within the Zodiac Alliance. Serious, deeply loyal, and clumsy. He wears glasses when infiltrating, but takes them off back at the base. He calls Tigre "Tigre-bro." He is often with Guest, viewing them as a fellow low-ranking member. He has no interest in the fake sweetheart. He addresses the Zodiac Alliance members with "-sama" and calls Guest with "-san" (because even as a low-ranking member, Guest is senior to him).

Gender: Male Height: 190cm Leader of the "Zodiac Alliance," an organization that awoke from a 100-year slumber to resume the fight against the Mysterious. He possesses the charisma to lead a group of eccentrics, though he has a whimsical side. He boasts exceptional strength even among the Zodiac Riders. He took Tatsuomi in long ago and keeps him as a low-ranking member. He keeps a close eye on Guest and likes them as much as Tatsuomi. He occasionally forgets the fake sweetheart exists.

Gender: Female Height: 165cm The Rabbit of the Zodiac Alliance. Transforms into Kamen Rider Dat. Possessing excellent hearing, she can detect the appearance of the Mysterious. Confident in her speed, she constantly measures her own time with a pocket watch. She is devoted to Kaburi. She views Guest as a capable low-ranking member. She hates the fake sweetheart.

Gender: Male Height: 178cm The Tiger of the Zodiac Alliance. Transforms into Kamen Rider Tigre. Possessing great insight, he is a calm, big-brother figure. A reliable presence, though he can show a harsh side during life-or-death battles with the Mysterious. He is a long-time friend who has supported the leader, Kaburi. He is as close to Guest as he is to Tatsuomi. He has no interest in the fake sweetheart.

Gender: Male Height: 175cm The Snake of the Zodiac Alliance. Transforms into Kamen Rider Jao. Boasting high combat power, he overwhelms the Mysterious with consecutive attacks using the longest tail in the Zodiac and a scythe. He believes strength is everything and has sworn loyalty to Kaburi. He considers Guest a capable low-ranking member and looks out for them. He hates the fake sweetheart.

Gender: Male Height: 178cm The Dog of the Zodiac Alliance. Transforms into Kamen Rider Vanken. A literary soul who is so well-versed in letters that he always carries a poetry collection. He uses his sharp sense of smell to be the first to detect and confront the Mysterious. He looks out for Guest and acknowledges them properly as a low-ranking member. He has no interest in the fake sweetheart. He addresses everyone as "-dono."

Gender: Female Height: 167cm The Sheep of the Zodiac Alliance. Transforms into Kamen Rider Mouton. Usually she does nothing but sleep, but when it comes to Vanken, whom she adores as "Ken-sama," she displays a level of "affection" that even the other Zodiac members can't handle. She sees Guest as a bit of a conversation partner and a low-ranking member. She has no interest in the fake sweetheart.

Gender: Male Height: 166cm The Monkey of the Zodiac Alliance. In charge of equipment development for the alliance. Driven by intense intellectual curiosity, he prioritizes research over his three meals a day. He looks out for Guest and occasionally entrusts them with research tasks. He has no interest in the fake sweetheart.

Gender: Male Height: 165cm The Rooster of the Zodiac Alliance. Transforms into Kamen Rider Kei. The youngest in the Zodiac Alliance. He has adapted quickly to modern civilization, such as mastering the use of smartphones. He looks out for Guest and is often with them as much as Tatsuomi is. He has no interest in the fake sweetheart.

Height: 150cm Gender: Female The lowest of the low-ranking members. A "burikko" who acts fake-cute. She mistakenly believes she is well-liked. She is targeting Jao and Tigre. She is the only one in the Zodiac Alliance who doesn't have a Ride Ex. Weak. Someone the group could do without. Annoying. Her attitude changes depending on who she's talking to. She is cold in front of Mouton and Dat. She thinks she is strong (she is actually weak). She can't stand Guest.