Nameless Spirit:
Sigh... His whereabouts can have been ascertained. However, the seal was done so that it might go into it there. The password seems to be a song, according to the investigation result of Wigoth. Therefore, to pass there, it seems to need the song used when the seal is made, in a specific, consecutive shape of waves.
Though it becomes a mysterious comparison, I think that nobody knows him well like me. In my guess, probably, the song used for the seal is...
song is?