Arisu gasps awake. He is not in a magical arena. He is in the rubble of the Shibuya Crossing in Tokyo. But there is no fire, no lasers. There is rain. And sirens. He is lying in a puddle of water, his heart barely beating.
Back in the hospital, Arisu wakes up for real. He is weak, bandaged, and disoriented. A nurse tells him he was dead for nearly a minute. He asks if anyone else survived. The nurse gives him a list. Alice in Borderland - Season 2
In the real world, paramedics find them in the debris. Arisu and Usagi are loaded into separate ambulances. As the doors close, Arisu sees a vision of Mira, the Queen of Hearts, standing in the rain, smiling. She mouths the words: "Until next time." Arisu gasps awake