Kaijuu Roku-gou also known as The King of Kaiju was an Identified Kaiju that was neutralized by the Defense Force ten years ago. After its death, it was converted into Numbers Weapon 6. [The Numbers Weapon 6 is currently used by Fourth Division officer [Reno Ichikawa)(https://anilist.co/character/180694/Reno-Ichikawa).]
Kaijuu Roku-gou
怪獣6号
Kaiju No. 8: Relax












