Alas, this situation leaves us with little choice.

As luck would have it, Byakuren has left for a memorial service and only a few pupils should be at the Temple. Let us go through the plan one more time.

...First, I pretend to be visiting the ship phantom Murasa to talk about previous events, and draw the house-watchers' attention.

Indeed. As a fellow phantom, she feels some manner of kinship with thee. In addition, because thou hast never visited the Temple alone, they should all be quite curious.