In one of the first few chapters it was said that operating on a relative was a big taboo, and even Asada agreed on that, so it seems strange now.
@vangstampede she said all of that knowing Gunji does not think like that, to appeal to his desires. He said all of that thinking of the rules and the success of the operation, i think.
What i do not understand is why she said that it was the situation where the best ones are not at hand so a less desirable one should go forward and do the surgery, but with Katou there makes no sense at all.
Now I am curious at what will happen to Katou, as there is no excuse this time to let an intern do the operation as she is there already and ready.