From the very beginning, Ryuen Kaito had intended to put on an act in front of Fang Li.
To achieve his goal of sending Ibuki Mio into Class D, Ryuen Kaito had not mentioned his plan to anyone. Even Ibuki Mio and Kaneda Satoru, who were preparing to carry out the mission, had only been instructed by Ryuen Kaito to infiltrate the class and find its leader. Ryuen Kaito had revealed nothing about the rest, such as his cooperation with Katsuragi Kohei or his game against Fang Li.
Ryuen Kaito knew full well that when facing Fang Li, he could not win unless there was not the slightest flaw in his performance.
That fact had been deeply ingrained in Ryuen Kaito's mind ever since the previous violent incident.
Thus, Ryuen Kaito had not revealed his plan to anyone. He only had Ibuki Mio and Kaneda Satoru carry out the infiltration, while he personally handled all the remaining preparations.
For instance, Ishizaki Daichi's appearance at Class D's camp had been guided by Ryuen Kaito, all to convey both "there are dissenters in Class C" and "the identities of the dissenters" to Fang Li.
Once Fang Li learned from Ishizaki Daichi about Ibuki Mio and Kaneda Satoru, he would definitely want information.
And Class D had Kushida Kikyo.
Ryuen Kaito naturally knew about her understanding of students from the other classes, as well as how close she was to Fang Li.
Therefore, Ryuen Kaito had concluded that once Fang Li learned of Ibuki Mio and Kaneda Satoru's existence from Ishizaki Daichi, he would surely learn the details from Kushida Kikyo.
At that point, Ryuen Kaito's first objective would be achieved.
That was to let Fang Li hear that "Ibuki Mio and Kaneda Satoru do not fit in with Class C."
If they