『 』

『　　』, pronounced as Kuuhaku, meaning blank, referred to the combination of Sora (空) and Shiro (白), and it, as an online game account, became an urban legend in the original world which had topped 280+ games without any record of lost. After that, they were called to Disboard by Tet.

『　　』 is generally depicted by four game accounts, the main account being named 『　　』, and the others named 『　SUB01』, 『　SUB02』, and 『　SUB03』.