"Oh his memory is faulty?" His persistence may have earned him a clue. "If you really wanted to know the answer to the question, then why not experience it for yourself? I suggest playing a game with your Lan Zhan. If he agrees, go find a blindfold, wear it, and then take a nap. Be in a place where he can easily find you. Depending on his mood, then and there, there is your answer."
no subject