User blog comment:AquilaeAltair/OnS Theories (5S) - Third Theory - Rigr’s weapon: An incomplete seraph/@comment-36009152-20190820011538/@comment-36009152-20190904180847

A cursed gear with a real body is an excellent description, with spirits being weapons, now weapons being people - and Saito has kind of transformed himself into that, oh and drinks blood stabbing his own army with chains probably XD

You know can actually see Saito following through on his plan to capture the first! Shikama Doji left his fight to confront Saito directly, then moved to a better vantage point when he attacked, the first is aware of the threat!