Fangrove
I sincerely hope Asia stays human, I don't know the need to always make her a devil, They well know that this only makes her suffer when praying, and she suffers when she is close to angels or sacred energy, even her power weakens when she is a blessed healer, If Asia stayed as a human or a reincarnated angel, her power would be stronger, and she wouldn't suffer from praying, If rias can't tolerate her being around when asia is not a devil, then it means they are not asia's friends, they are just master and slave, That would only show that Rias only cares about power, not tolerating helping someone without making them part of her nobility, Also, Asia swore allegiance to God, and uniting below the estuaries is like betraying God to serve the devil.