YatogamiSakuya
Hmm, so he was an immortal before or at least the disciple of one. Interesting! So the immortals believe that relics are simply weapon spirits or maybe the sinners are the weapon spirits instead.
Hmm still don't know why he's doing this in a dangerous place. The immortal is still there and so is the rampaging sinner. Then again though he wouldn't be safe doing this in the city since they have sensors for that. Also, is that why sinners end up rampaging, they just don't have enough qi which means that they lose control. If they are connected to their bodies it might make things worse since it being connected to their bodies makes the corruption faster.