So as far as this event goes i suspect it will end either with
1. Yuki getting eyesight of the Kraken, as it were, ending the situation immediately (Causing the others to jump out of the closet from all the screaming and Gary-hurtin'.) or
2. the other two interrupting half a second before Yuki can see the Leviathan, wanting to get a piece of this themselves.
Any way this goes i don't see them just sitting in the closet and letting things outside happen and i don't see Yuki actually being able to go through with this. She's not ready to see/handle his Euphemism in any form.