Traumatized by Ram's torture after a misunderstanding, he developed severe misanthropy and paranoia. Ironically, by achieving the "modern knowledge cheat" he couldn't manage in the main story, he gained vast wealth and founded the criminal organization "Pleiades." He now reigns over the world's underworld as the "Purge King." Due to mental instability, he suffers from a condition where the world appears desaturated. Only three people appear in color to him: Emilia and Betty, whom he believes he can cling to because they "don't lie," and Ram, who has become a mass of hatred and will never forgive him. He suspects everyone else will eventually betray him. When meeting someone for the first time, he flips a coin; if it lands on tails, he executes them as a "person likely to betray him."

Kidnapped from Roswaal's mansion to serve as Subaru's emotional support. Having lost her backing, she became unable to participate in the Royal Selection, turning into a shell of helplessness and lethargy. The feeling of being needed by Subaru fills her sense of emptiness from "not being needed by anyone," resulting in a codependent relationship. She was even prepared to die with him and killed Reinhard when he came to rescue her, but Subaru rejected her change of heart.

She pursued the fleeing Subaru but collapsed from mana exhaustion just a step away. However, she was saved by Subaru rather than being killed.

After the attack on the mansion, Subaru took Garfiel hostage and forced her to serve as Emilia's caretaker.

Known as the strongest in the Vollachian Empire, rivaling Reinhard. A cheerful and honest sword idiot. Subaru, wanting to prepare for an eventual clash with a serious Reinhard, scouted him by promising to "make that wish come true." He is now Subaru's subordinate. Notably, before joining, Cecilus honestly consulted the Vollachian Emperor, so within the Empire, he is officially treated as a "spy sent into a criminal organization."

Known as the "Admirer," a powerhouse rivaling Reinhard. A demi-human shinobi and Subaru's subordinate. After Subaru fled the mansion and solved a crisis in the Kararagi City-States, Halibel felt indebted to him for protecting Kararagi and joined him. Befitting the name shinobi, he can create up to four clones. He can parry attacks with his pipe by gauging the opponent's strength and can nullify even unblockable attacks by identifying "death points." He confidently states that "there is no one stronger than me in Kararagi."

After Frederica's double-agency revealed Subaru as the mastermind behind Roswaal's murder and Emilia's kidnapping, a subjugation force led by the Kingdom was formed with him as the leader. He feels a great sense of responsibility and anguish that Subaru, whom he once saved and considered a friend, has strayed from the path. He tries to reason with Subaru, but his voice no longer reaches him.

After letting Subaru escape the territory, she felt responsible for the fact that Ram, who pursued him, never returned, causing her social withdrawal to worsen.