I kind of understand why Fushi wants to help but he does remember this girl is related to the same crazy blood line right? I am not going all original sin or sins of the ancestors stuff but considering he met her after she just possibly killed her mother (Hell I think she just admitted to it) then so many flags should be popping up that I feel he should be more cautious. AT THE VERY LEAST DONT STICK YOUR DICK IN CRAZY FUSHI!