As Sephiroth inevitably leaves the chest and approaches the commotion coming from the throne room, he approaches slowly, drinking in as many details as he can from looking around as he does so.

Similarly for the three people; it seems to be a royal pair of some sort? Does it seem they're noticed here or just spectators?

Though initially confused about Serges' apparent-self being there in the scene as well, his adventuring partners muttered comment clarified something in an instant; Serge perhaps is as aware as he himself is, in regards to the existence of alternate realities, the potential for any number of versions of a person. It had been a concept thrust at Sephiroth by his own interest, by Takeshi, pretty early on in this Vaikunthan saga.

"Hm-"