A quick google search suggests they are still at SE, but I can't verify the accuracy of any of this

Ryota Iwagami

Design
Final Fantasy VII: Remake (2020) (Battle System Designers)
Dragon Quest XI: Echoes of an Elusive Age (2017) (System Planners)
Final Fantasy XIV Online: Heavensward (2015) (Crafting, Gathering, and Item Planners)
Final Fantasy XI Online: Ultimate Collection - See... (2013) (Battle Planners)
Final Fantasy XIV Online: A Realm Reborn (2013) (Crafting, Gathering, and Item Planners)

This was the original post about the introduction of Monstrosity

https://forum.square-enix.com/ffxi/t...he-Test-Server