Covering this one really quick since there was something I wanted to touch on -

Nanami's final threads were something the player wanted to do before they left, so unfortunately there's no lore there, but there will be more information on our missing people coming up soon! I saw that there were plans for the pool monster too so please let me know if you need any help with that one. For the coordinates, this month is really top heavy for me so I'm not sure I can run something for you just yet - but I should be free closer to the end of the month once missions have gotten some momentum, so around or after that we can visit his coordinates. Just let me know when you're ready!