Arisu was gathering information around the Beach when he heard a gunshot. He rushed to investigate and saw members of the militant faction just leaving. He noticed a container covered by a cloth curtain. Arisu quietly approached the container, lifted the curtain, and discovered a pile of dead bodies, leaving him terrified. At that moment, Kyūya and Mizuki appeared and told Arisu that this was the true face of the Beach—betrayers were executed.
Kyūya and Mizuki took Arisu to the rooftop and asked him what he and Yuzuha were planning by gathering information. Arisu said he only wanted to know who was behind this insane game and who had killed Karube and Chōta. Kyūya had a plan and saw potential in Arisu. He wanted to recruit Arisu to help execute it, believing Arisu had the ability to change the current situation. Danma had been suppressing Kuni's militant faction, but he was gradually losing control. If the situation spiraled out of control, the Beach would be ruled by the foolish tyrants of the militant faction, and the purpose of the Beach would be lost. Kyūya told Arisu that he wanted to steal all the playing cards and sneak away from the Beach.
Soon, it was time for another game, and this time, Danma personally participated. The next morning, Kyūya called Arisu to a meeting in the conference room, where they found Danma lying on the table, dead. From his injuries, it appeared he had been shot. The executives decided to hide the fact of Danma's death to avoid causing panic among the Beach members. According to the Beach's rules, the new leader should have been the second-in-command, Kuzuryū Keiichi. However, the militant faction had long been restless. Nira, one of Kuni's subordinates, used violence to push Kuni into power. Under this forceful suppression, the other Beach executives dared not oppose and had no choice but to accept Kuni as the new leader.
The opportunity Kyūya had been waiting for had finally arrived. The playing cards were always kept in a safe, and only the Beach leader knew the password. Now that Danma was dead, Kuni retrieved the black envelope containing the sealed password. The moment he opened it, a faint look of surprise flashed across his face—a subtle change that Kyūya noticed. After reading the contents, Kuni resealed the password. During Kuni's inauguration as the new leader, Arisu sneaked into the room and found the safe containing the playing cards. Meanwhile, Kyūya had deduced that the safe's password was the mirror image of the word "boss," which is 8022. Arisu was horrified by Kyūya's deductive abilities and felt that he must never become Kyūya's enemy, as the man was too formidable. Arisu entered the password, but it was incorrect. Just then, Kuni and his men burst into the room and caught Arisu red-handed. To Arisu's confusion, Kyūya was also following behind Kuni. Kyūya had betrayed him—he had reported Arisu to Kuni.
Nira, from the militant faction, attacked Arisu, beating him violently. They then tied him up and wrapped tape around his eyes, ears, and mouth, depriving him of sight, hearing, and the ability to call for help. Arisu's visa was set to expire the next day. Deprived of sight and hearing, he could no longer sense the passage of time and could only wait in endless fear for the moment a laser would take his life.
Meanwhile, Anzu Tsukasa dissected Danma's body and retrieved a bullet from it. Kyūya's plan was not over—his goal was still to steal all the playing cards. Betraying Arisu was a means to obtain the final piece of information. When Kuni first entered the room, his eyes had glanced toward a reindeer painting hanging on the wall—clearly, it was something he cared deeply about. Kyūya deduced that the safe containing the playing cards was hidden behind the reindeer painting.
Kyūya found an opportunity to sneak into the room again. Behind the reindeer painting, he indeed discovered a hidden safe. He entered the password 8022, and the safe opened, revealing the complete set of playing cards. Due to Arisu's betrayal, Yuzuha was also implicated. Nira and his subordinates pinned Yuzuha down on a bed. Just then, the Beach suddenly lost power. The blackout was brief, and electricity was soon restored. But in that moment, the Beach had completely changed.
At the same time, Kyūya and Mizuki, who had obtained the playing cards, tried to leave but found they could no longer escape. The entire Beach had become a game venue, and anyone attempting to leave would be killed by lasers. Then, the game announcement sounded once again. This was a game targeting the Beach, and its difficulty level was the missing card—the Ten of Hearts. This sudden turn of events saved Yuzuha.
Panicked Beach members gathered in the hall and discovered a body—Momoka, with a knife stabbed into her chest. The game was called "Witch Hunt." The witch who had taken Momoka's life was among the Beach members. The witch might not necessarily be female. To clear the game, they had to find the witch and burn them at the stake. The time limit was two hours.