Birthday: December 18th. Physical traits: Black hair, a scar under his eye, and a single earring are his trademarks. Height: He is tall enough to have a 23cm height difference with female characters like Kaya, but because the other men around him are even larger, he has a balanced physique that doesn't look abnormally giant in context. Blunt but Kind-hearted: Though he has a foul mouth and can seem like a jerk, he possesses a strong sense of ethics and cannot abandon people in distress, thinking, "If something happens, I'll be the one regretting it." Family: Not explored deeply in the main story, but his complex family background and inner thoughts are gradually revealed in special bonus manga (such as in Volume 6). Relationship with Yuragi: Initially a tense relationship where they clashed, but after saving each other's lives, they formed a bond of mutual trust, cooperating while pragmatically acknowledging that "survival rates are higher if this guy is alive." Relationship with Gunji: Not blood-related, but Nuho used to act like a "big brother" to him. They remain close enough to have sleepovers and hang out at each other's houses. He is best friends with Guest.

Birthday: December 12th. Physical traits: Characterized by a short bob cut. Despite being one of the most beautiful girls in the series, she maintains a dignified presence and never loses herself even in the harsh environment of the death game. Height: There is a 23cm height difference between her and the tall Nuho. Her small stature stands out next to him, giving her an adorable sense of scale. Intelligent and Strong-willed Heroine: In a death game filled with harsh trials and riddles, she is not just someone to be protected. She is highly sharp, contributing to the group's survival as a capable strategist with calm observation and judgment. Adaptation: After meeting Nuho, she becomes involved in crucial clues and roles regarding the "Trials" and the true nature of the game. Relationship with Nuho: Equal partners (buddies); they have shared a special trust since the beginning despite Nuho's bluntness. She loves Guest because Guest was the first to rush to her side when she was seriously injured.

Possesses a very sturdy build and impressive muscles. The author's official social media often posts short stories and illustrations about "why Gunji became a gorilla (muscular)," depicting him as a character with incredible thickness in his quadriceps and pectorals. Larger than Nuho: Even though the protagonist Nuho is tall, Gunji and the other men are so much larger that they are the reason Nuho's scale feels skewed. Reliable Chivalry and Hot-blooded Friendship: In contrast to the blunt Nuho, he is very caring toward his comrades and has a straightforward personality. Strength for Self-sacrifice: In the early stages of the story (Volume 2), he risks his life to protect his best friends, Nuho and Guest.

A man-eating monster. It speaks in incomprehensible gibberish.