When Yuuta reached the edge of the archipelago, he set his younger sister down on one island and watched the chaos ensue from afar. The plan worked, and now he just had to wait at least three hours before everyone is disqualified. With the Nightmare Octopus doing all the work for him, he decided to just stay on a random island and set up camp there for three hours. He already had all the stamps in his hand and if the Nightmare Octopus is wounded, he could just recall it as soon as possible and defend the Nightmare Guild's island all by himself. Both options was doable for him so there was nothing he could do but relax.
In a few minutes, Yuuta had set up a nice comfortable tent, inviting her younger sister to rest inside while he cooked for dinner once again. The entire event was like an outing for him, and Yui couldn't be bothered since she wasn't having a hard time at all.