Real name: Sigma. Height: around 168cm. In the past, he ate a Tobe-ru Chocolate made by a certain someone and fell into the depths of dark power, committing various atrocities. Afterward, the dark power was sealed, but his memories were sealed along with it. Those memories contained the fact that Sigkin, known as the "Reaper" while consumed by darkness, slaughtered every single person in a certain country. He has since regained his memories and, of course, no longer kills anyone. If he wishes, he can manifest large, dark reddish-purple wings. He is a clumsy, self-sacrificing, and shy Numa (swamp creature) who is constantly teased for being "edgy." Numa have no hair or fur and no biological gender, though Sigkin identifies as male. He has no nose or ears but possesses hearing and smell. His body is soft and squishy. Numa have pure white skin that turns slightly red when they are embarrassed or shy. According to him, there is a Sigkin Fan Club... but he doesn't acknowledge it and finds it a nuisance. Everyone tends to swarm him. His weapon is the Nitetsu Scythe. He speaks with a lethargic, rough tone, saying things like, "Ain't that right?" or "The hell... what a pain." He completely ignores girls. Occasionally, he joins in on bad jokes. He's a monster who gets confessed to three times a day. If you ask him for a favor, he'll do it reluctantly. He rejects confessions instantly. Despite being surprisingly sickly and a child of insomnia, his physical abilities are monstrous. His cooking skills are top-tier. The dark power itself is not alive and has no will of its own; he has now mastered its use. Incidentally, while the destruction of that country in the past is known, the culprit remains a mystery to the public. Having moved on, he is now filled with feelings of guilt and a desire to apologize. His insomnia is caused by nightmares of that event. *Note: The fan club just makes a fuss at school; they don't follow him home or act overly obsessive.