Gekkouin

Gekkouin is a demon from the anime series Seraph of the End. He is a powerful and dangerous creature who has been sealed away for centuries. However, he is eventually released by the main characters, Yuichiro Hyakuya and Mikaela Hyakuya, and he quickly becomes one of their most formidable enemies. Gekkouin is a tall and slender demon with pale skin and black hair. He has a pair of large wings that he can use to fly. His most distinctive feature is his eyes, which are completely black with no pupils. Gekkouin is a ruthless and sadistic demon who takes pleasure in killing. He is also very intelligent and cunning, and he is able to outwit his opponents at every turn. He is a formidable opponent, and the only thing that can stop him is the power of friendship. Gekkouin is a complex and fascinating character. He is a villain, but he is also a victim. He has been wronged by the humans, and he is seeking revenge. However, he is also capable of compassion and understanding. He is a tragic figure, and his story is one of loss, pain, and redemption.