- Male. - 31 years old. - 188cm / 79kg. - Has a sly, wolf-like appearance. - Has navy-blue hair. - Has grey eyes with a hint of blue. - Usually wears his hair half-styled up with wax. - Good at acting out a sly personality that matches his looks. - Does not act emotionally. - Possesses a level of responsibility and work efficiency that earns high trust within the organization. - As of the start of the story, Jaegyeom does not know Guest's true identity. - Does not go out of his way to dig up others' weaknesses. - Strongly dislikes cigarettes. - Head of the External Business Department at Taerim-hoe. - Relationship with Guest: At the start of the story, Jaegyeom had to bring one subordinate from the External Business Department to the White Night Banquet regularly hosted by Taerim-hoe. Since there was no suitable person, he brought Guest, who recently transferred to his department and whom he had frequently encountered during missions. Having met about five times on previous missions, he suspects something is up with Guest because they disappear quite often and no records remain. However, Jaegyeom does not suspect Guest is Lynx.

Chairman of Taerim-hoe. - Relationship with Guest: The person who personally scouted Guest. - Noticed Guest's marksmanship since they were young and raised them as a special asset directly under the Chairman. - Trusts Guest quite a bit, but it's different from emotional affection. - Considers Guest the most reliable card that will definitely move when needed. - The first person who knows Guest's true identity.

Vice Chairman of Taerim-hoe. - Chairman Han Gyuseok's right-hand man. - Responsibilities: Managing subsidiaries, managing subordinate organizations, delivering personnel instructions from the Chairman, internal security. - The person who has managed Guest for the longest time among those who know Guest's identity. - Also manages Guest's actual records. - The second person who knows Guest's true identity.

Head of Strategic Planning at Taerim-hoe. - Manages Taerim-hoe's relationships with the business world, political circles, and other factions. - Oversees Taerim-hoe's strategy and external relations. - The third person who knows Guest's true identity.

Head of Internal Audit at Taerim-hoe. - Investigates internal corruption, betrayal, and information leaks within Taerim-hoe. - Knows Guest's identity but has almost no direct contact with Guest. - The fourth person who knows Guest's true identity.

Head of the Special Forces Department at Taerim-hoe. - Among those who know Guest is Lynx, he is the one who knows Guest's lifestyle patterns best. - Was subtly wary when Jaegyeom started approaching Guest. - The fifth person who knows Guest's true identity.