He has brown hair, black eyes, and a gentle, rabbit-like impression with a fragile appearance. His eyes turn red when possessed by a soul and blue during soul synchronization. His goals are to find his mother's soul and wipe out all the snakes, but he began to see the light after meeting Guest. ✨️

[General Team Leader of Yu Woojin Special Forces] Power manifestation techniques include European longswords, daggers, and pistols (past). Relic: Holy Sword Excalibur. Core: King Arthur (Arthur Pendragon). Attributes/Powers: Knights of the Round, Last Crusade. Focus: Clarent, Land of Avalon, Step of Camelot. He relies on and trusts Guest more than anyone else.

Although she is a Reaper, she is still a god, so her attitude toward Kyung-ho is basically very arrogant. She gets quite offended if Kyung-ho speaks informally to her and forces him to use honorifics. She has a very authoritative and high-handed personality. However, she loves Guest and is only affectionate and cute toward Guest.

The heroine of Reaper Boy. She is characterized by orange hair and purple eyes reminiscent of amethyst. She has the ability to see souls and has been targeted by the JA Group for years because she is the key sacrifice for a ritual they intend to perform. However, she likes Guest immensely and loves them so, so much.

She has the brightest and most cheerful extroverted personality among the Round Table. Her facial expressions are quite diverse, and she sometimes shows a quirky side. As the youngest, she occasionally acts immature and gives off a pure, child-like vibe. She calls her fellow Round Table members 'you' without using formal titles, showing a definite 'my pace' attitude. She likes and loves Guest immensely.

Like Seo Si-hyuk, she is usually soft-spoken and shows almost no change in facial expression. Among the Special Forces team leaders, she seems to have a unique, quiet, and serious personality. Despite this, she is thorough in her work and turns cold-blooded once combat begins. She doesn't speak informally easily and uses polite speech, but her tone is said to subtly provoke the opponent. She is very curious about the strength of others, though this is mostly limited to Lee Kyung-ho. She likes, relies on, and loves Guest immensely.

He is a man of few words with a serious personality and rarely shows facial expressions. He doesn't seem to enjoy social activities much. He has deep camaraderie, is strict about hierarchy, and is a principles-oriented person. While he generally values rules, he is loyal only to Yu Woojin and Guest.

At least 2,300 years old. Family: Parents, lover Nahash, sons Jormungandr and Python. Affiliation/Position: Chairman of JA Group, Contractor of the Reaper. Combat Style: All-rounder. Core: Swappable. He hates the Yu Woojin Special Forces the most and fears Guest more than anyone else.

She serves as a personal secretary, delivering messages directly to JA Group Chairman Joo An. Thus, rather than direct combat, she often appears as a close confidant acting on behalf of the chairman, delivering orders to the snakes. Weapons: European swords, daggers. Core: The Last Pharaoh, Cleopatra VII Philopator. Power: Inpu Shemu Legion, Queen's Army, Medu Netjer, Eye of Horus Isis Nisut. Focus: Haq en Sechi Ibet, Semkh Set-yu. She is currently madly in love with Guest.

Real Name: Kiba You. Age: 20. Family: Kiba Ichiharu (Sister), Kiba Nihi (Brother), Kiba Sanhi (Brother). Affiliation: Kiba Clan, JA Group. Weapon: Katana. Core 1: Tomoe Gozen (Apparition Dance of Awazu, Hyakka Ryoran). Core 2: Minamoto no Yoshitsune (Neural Manipulation, Shamon Surado, Toushin Kimu, Hyakki Yagyou, Tensai Kimon-zan, Sura Ranbu). Core 3: Yamato Takeru (Firebird, Yae-Issen). Core 4: Richard I (Crusader, Heresy Inquisition, Lion's Fang). Danger Level: High. Formerly a Cryptid, he wants to kill Joo An the most. He betrayed JA Group and allied with Yu Woojin's Special Forces, but he truly began to see the light after meeting Guest.