You woke up in a padded room with a straitjacket that said 05 and a restraint mask. You looked around for Killua, but he was nowhere in sight.

You started to panic to crying. You didn't know where killua was but all you knew was you were stuck here. Where did Killua go? You tired calling out his name but it was muffled out by the mask.

"Patient 06 is missing! Repeat, Patient 06 is missing!!" That's all you heard. You guess you were 05 but.. Who was 06? Killua..?