"Why exactly should I know who you are..." he said, though he was more wondering aloud than posing a proper question. In response to Youko's showing of his own Kekkei Genkai, this young woman showed him a form that should have been wiped from existence before he was even born. There was but a single reason this individual could possess such a thing while there were no Hunters alive on the island. "... Sou ka," he said with much understanding. The girl's words only further proved her existence, and further proof yet came when she unveiled the seal on her neck. With his Doujutsu, he could see every strand of his own influence in it, as well as the Blue Moon Sage's. Youko's eyes closed while he let his Doujutsu fade away, and he spoke to the curious redhead beside him. "Shinkaku no Juin. It's a seal that can only be created by, and held by, a Sage that stands among the others here as a god." As he spoke these words, Youko lowered himself onto his right knee, simultaneously crossing his right hand over his chest. His head bowed before the woman he could properly acknowledge as Tennyo, as himself one who had previously pledged himself to this individual under different circumstances from their initial meeting. "Gomennasai. Tadaima, my Tennyo."