While following, they visit Amanogawa High School. Sougo Tokiwa (Kamen Rider ZI-O) also joins them. They doubt that Another Rider is connected with this case & also behind it.
The next target is believed to be a girl named Karin who is 18 year old and Libra born. Sougo finds her but Another Rider appears in front of her inside the school. Sougo & Geiz transforms and fights him. The students cheer them. But Another Fourze disappears from there & also Karin runs away from there.
Sougo, Geiz & Tsukuyomi come to know that in this school there is a Kamen Rider Club. Inside the room of Kamen Rider Club, they meet Teacher Chuta Ohsugi who is the current advisor of Kamen Rider Club. He gives the Fourze Ride Watch who had received it from the previous Advisor of Kamen Rider Club.
Geiz doubts that the key to the incident is in the year 2011. Sougo uses Fourze Watch to go to the world of 2011.
On the other hand, Tsukuyomi finds Karin and gives her the hand of help. But Masato Kusaka (Kamen Rider Kaixa) attacks her. Takumi Inui (Kamen Rider Faiz) tries to stop Kusaka.
Kamen Rider ZI-O - Hokan Keikaku Episode 5.5: "TOKIWA-SOUgo & the Mysterious Phone"
The true identity of Faiz Phone X which Tsukuyomi has been using from Episode 1 will be revealed. We'll also come to know from where the name Sougo Tokiwa comes from.
If you guys have watched Shotaro Ishinomori Monogatari which aired recently, then you might have already doubted his name to be from that.