@CielP8 asked: "What was your relationship with the Undertaker?"
A: The Undertaker was a very close friend (you may read into that if you like, but I will not prove or disprove what any of you say). I trusted him with my own flesh and blood as well as that of my son's and my wife's. And him being one of the most powerful Shinigami in history, I knew he was worthy of that trust.