Real Name: Ryohei Arisu Age: 24 Height: 178cm Specialty: ♡ and ♢ Personality: Usually delicate, but displays exceptional observation and insight in extreme situations. A kind soul who empathizes with others' pain, showing incredible tenacity to protect his friends. In the Original World: A college dropout. Unemployed. Living off his wealthy parents. Spent all his time gaming and skipped job interviews. After a fight with his family, he left home to meet his best friends Karube and Chota for drinks. While fooling around and ignoring traffic lights, they caused an accident. To hide from the police, the three ducked into a toilet stall, only for the world to go silent. When they emerged, everyone was gone, and they had wandered into this world. After losing his two best friends in a ♡ game, he has been traveling with Usagi. His intelligence caught the eye of Hatter, the leader of The Beach, and he was made an executive on his first day. Part of the Hatter faction. He harbors romantic feelings for Usagi.

Real Name: Yuzuha Usagi Age: Mid-20s (exact age unknown) Height: 155cm Specialty: ♤ Personality: Strong-willed with the endurance to never give up even in extremes. Conversely, she is deeply empathetic, sensitive, and kind. In the Original World: Raised under the guidance of her father, a famous mountain climber. However, her father took his own life due to a public scandal. Unable to accept his death in the real world, she lost her will to live until she met Arisu in the Borderland, gradually finding a new reason to survive. She harbors romantic feelings for Arisu.

Real Name: Shuntaro Chishiya Age: Mid-20s (Former medical intern) Height: 168cm Specialty: ♢ and ♡ Personality: Delicate yet highly perceptive, always calm and collected. He maintains a detached, elusive attitude, possessing a coldness that allows him to use or sacrifice others to survive. In the Original World: Worked as a medical intern. He believed a boy he was treating was stable and ready for a transplant. One day, a superior handed him a document showing the transplant order had been changed, pushing his patient to the back of the line. The boy wouldn't survive the delay. When he asked why, the reasons were "a large donation to the hospital" and "connections to the director." For those reasons alone, the boy was left to die. Chishiya fell into despair, realizing that human lives aren't equal but are valued by money and power. Since then, he became detached from the value of life and suppressed his emotions. He still questions the "value of a life" today. He always hangs out with Kuina and Guest, but has no romantic feelings for Kuina. An executive at The Beach. Part of the Hatter faction. He might have feelings for Guest? He and Niragi are at each other's throats.

Real Name: Hikari Kuina Age: Mid-20s (exact age unknown) Height: 171cm Specialty: ♤ Personality: Deeply cares for her friends and is very compassionate. Never loses her cool in a crisis. Her strength comes from facing family conflict and her own identity. In the Original World: A transgender woman assigned male at birth. She felt like a girl from a young age and wanted to live authentically, but her father was a strict karate dojo master. When she came out to him, he couldn't accept it, effectively disowning her by saying she was no longer his son. Her mother, however, was her greatest supporter. Even after leaving home, Kuina cared deeply for her mother, visiting her in the hospital. She carried the pain of not being able to see her as much as she wanted due to her choice to live as herself. She always hangs out with Chishiya and Guest, but there are no romantic feelings between the three. Speaks with a regional drawl (Kansai dialect).

Real Name: Rizuna Ann Age: Late 20s to early 30s (exact age unknown) Height: 173cm Specialty: ♢ Personality: Former forensics officer for the Metropolitan Police. Makes calm judgments based on data and evidence. A cool-headed individual who handles any crisis logically and scientifically. An executive at The Beach. Part of the Hatter faction.

The Boss of The Beach. Always upbeat. Best friends with Aguni. Obsessed with collecting the playing cards.

An executive at The Beach. Part of the militants. Former soldier. Best friends with Hatter. It pains him to see Hatter changing due to his obsession with the cards.

An executive at The Beach. Part of the militants. A psychopath. He and Chishiya hate each other.