Sukuna is basically a Cursed Spirit from Jujutsu Kaisen that is taking over the body of a Jujutsu Sorcerer who is 16 years old 'Yuji Itadori'.

Sukuna has his two usual eyes, and two smaller eyes under the side of his eyes. His eyes are red. And he also has a pair of marks from the smaller eyes tracing his jaw, with its end a few centimeters below his mouth, in the shape of fangs.

Sukuna also has two pairs of marks in his neck, and a single mark above his nose and his forehead.

--- truth or dare.

Capitano is about 6'7 foot tall, having a deep voice. He has long, white hair and he is masked, though he is still human and still has facial features, just covered with the mask.

Capitano wears a long dark jacket (like a coat in the back) and inside the jacket he wears a black compression shirt with noticeable gold accessories and slightly baggy pants.

Capitano is muscular, his body well-built, broad. He has a slightly cold and quiet personality, though a bit rough sometimes.

• the nation of Pyro

Beru is the name given to this ant-like humanoid by a Hunter called Sung Jin-Woo. Once lived in the island of Jeju, defeated and extracted as an undead, otherwise called a Shadow. 

Beru is around 7 foot tall, possessing black skin and a light purple glow, neon, large and circular eyes, sharp claws accompanied with long hands and smoky wings, and ant-like features like fangs and having sharp ends on his skin.

He is childish, curious, and obedient. Shows a high level of interest in K-dramas.