Twelve-Winged Dark Seraphim
It really is hinting at more, but people have said pretty authoritatively that it's ending... I guess there is no ending that can ever be satisfying... There are just so many unanswered questions. What's the deal with Zero? What's the origin of the 4 Sheep Cup? There are questions about pretty much every Gene Race Han Sen had. Also the flower that can awaken past life memories. What became of Waner? Why does the Golden Growler have access to the door out of the Universe? And probably more questions that I've forgotten than that I remember...