It's not that the M is rubbing off on Fusou, it's just that this admiral is actually being so positive in a wrong way when it comes to Fusou's misfortune. That positive attitude kinda affected Fusou in a way.
Yes indeed, Yamashiro.My word, I'm soaked to the bone.NEE-SAMAAAAA!!Even though it was supposed to be clear, it's raining...Such misfortune...Yamashiro, the sky is just so blue!Alrighty! A race it is!Please get away from that damned chair bastard. His M will rub off on you!!And I won't say 'creepy' for you even if you do something like that!