In the past, Ryota and Himiko got married in the Btooom! world, but Himiko did not want to meet him in the real world just yet. Ryota, realizing that Masashi and Soichi are working together, is overpowered and has his BIMs confiscated. Although Masashi allows Ryota to escape after shocking Soichi with a stun gun, this was his plan to track Ryota back to the abandoned communications tower. Ryota tries to reason with Masashi, saying that the entire scenario was set up by Tyrannos Japan to iron out bugs in Btooom!, as there may be a loophole allowing everyone to survive. However, Masashi actually revels in this, slicing Kiyoshi's fingers off and pushing Ryota off the cliff into the trees before he leaves. Ryota returns back unharmed and finds Himiko's phone, realizing she may be the same Himiko whom he knew in the game, judging from her cosplay wallpaper. At another abandoned building, Masashi and Soichi tie Himiko down on a bed and proceed to torture her a bit. Ryota, leaving Kiyoshi behind, uses his sonar to signal and locate Himiko, prompting Masashi and Soichi to search for him. After untying her, Ryota questions if she was the Himiko he once played with in Btooom!, but she denies this. The two are attacked by Soichi, who is consequently killed by his own Cracker BIM that Ryota previously disabled. Masashi then holds Himiko hostage, challenging Ryota to a fistfight. Instead, he rushes for Masashi's knife, only to be beaten to the ground. Himiko then jumps on Masashi and activates a Blazing Gas BIM on him, sending a plume of gas after them. Ryota and Himiko try to escape by going through an opening in the ceiling, but not long before a severely burnt Masashi grabs Himiko's leg to drag her back down. However, Ryota reactivates Soichi's Timer BIM, which soon detonates and kills Masashi. In an unknown location, a large number of Tyrannos Japan executives view Ryota's victory over Masashi.