[ Everyone just turns to stare at Sasuke... also Hiroto gets visibly uncomfortable at that topic. He shifts his weight from foot to foot as he brings his hands together. However, he did say that he'd answer all of their questions so he nods. ]

Daitengus... have the power to prevent a soul from properly returning to and leaving the Sea of Souls. Even without a physical body, you can still be damaged and when a Daitengu does this, it prevents you from coming back to life. Either with or without the Kotengu's influence.