User with this ability either is or can transform into an Akkorokamui, a gigantic octopus-like monster from Ainu folklore, described as great sea-monster, with large staring eyes, round in shape, and emitted a dark fluid which has a very powerful and noxious odour. Its enormous body can reach sizes of up to 120 meters in length, and its coloration is striking red, often described as glowing and likened to the color of the reflection of the setting sun upon the water. Due to its coloration and immense size, it is visible from great distances.