It’s a term used to describe working angels
who have the skills to “update” various things.
The angel rings on their head are said to prevent him
from mixing up the target thing with themself
during the updating process.
様々な事物を「アップデート」する
技能を持った労働天使を指す語。
頭上の輪は、更新作業中に対象となる事物と
自身が混ざってしまうのを
防ぐ作用があるらしい。
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