'I do not know,' Sephiroth said, surprised to realise that he had no idea whether he had encountered the man before. In fact, he had very little recollection of the world he came from, only marginally more knowledge of his home than of 'London'.
Legendary weapons? Like Masamune...?
'I also have an interest in weapons,' Sephiroth said, erring on the side of caution. 'Perhaps you would show me your collection some time.' Couldn't hurt to have access to that, now could it? Whether this Gilgamesh turned out ally or enemy, he could be useful.