Ah...you must be from before he revealed himself. He's the one who arranged things so Akira and I would be against each other.

[He rubs his forehead and sighs.]

The cause is still under investigation. I doubt it's related to Mementos, unless it's become self-perpetuating. The Metaverse Nav does function here, but there is no Mementos. Most likely there simply aren't enough people here to form one.