Right after stepping into the second-tier safezone-gate back then, Yuki and Ayaka received their trial missions. And lucky for them, unlike Shin and his squadmates who got scattered the moment they arrived, the two weren't separated. They stayed together, though cruelly, the system gave them separate tasks.
[Yuki: Defeat the Stone Tsukuma and proceed to the Safezone!]
[Ayaka: Defeat the Glass Tsukuma and proceed to the Safezone!]
The screens had flashed before their eyes, and back then, the two had agreed to face the trials together, one at a time, helping each other take down their enemies.
But that was before they realized just how impossible that would be.
They couldn't even scratch the Stone Tsukuma.
