Kaiju Juu-gou is an Identified Kaiju who attacked Tachikawa Base. It is created by Kaijuu Kyuu-gou and is considered a "prototype". It was then weaponized into Numbers Weapon 10, currently used by Soushirou Hoshina.
Its fight with Soushirou Hoshina managed to excite it so much that, even after being defeated, it still felt linked to Soushirou and wished to be turned into a weapon for him, to fight with him once more. Kaiju Juu-gou seems to be a rather independent individual, easily betraying its progenitor Kaijuu Kyuu-gou just to get closer to Soushirou.
Kaiju Juu-gou is a extremely powerful Identified Kaiju, with a fortitude level of 8.3 when it first appeared, and 9.0 after growing larger in size.
