Konkuro Maruki's Swordsmith is Kurokuma Ame 【黒熊雨】
I named him after my blacksmith friend who forged mine and my fiancé's engagement and wedding rings. If you're reading this, dude, thank you. You're the best.
See his work here: www.waterfieldforge.com
(WiP of Maruki's Brass Tsuba below)
