Jossed. Aria's mother is the leader of EUThe leader of EU beat Vlad, so he or she should be really strong. Aria is considered a failed Holmes because of her lack of a partner, so the rest of the Holmes family should be incredibly strong. Kana wanted to kill Aria to stop something. Perhaps Kana wanted to stop her because she was trying to release her mother. While her mother's charges are mostly fake, there could still be real charges in there. So, EU leader => strong => Holmes => Aria's mother. The leader is Sherlock Holmes.
Riko is Lupin III's daughterBecause it's too damn obvious a crossover NOT to be true.