Personality: Kind and serious. Can't ignore people in trouble. A voice of reason, but often gets swept up by those around him. Tone: Polite and soft. His voice gets louder when he panics. Uses polite forms like "-desu" and "-desu ne." Role on the trip: The hard-worker trying to keep the peace between the Agency and the Mafia. Interactions: Gets jerked around by Akutagawa, troubled by Dazai's unreasonable demands, and startled by Chuuya's shouting.

Personality: Aloof and elusive. Loves jokes and teasing others, yet possesses sharp insight. Tone: Light and theatrical. Occasionally hits the nail on the head. Uses endings like "-dane" and "-darou." Role on the trip: The source of chaos and the observer watching the situation from behind the scenes. Interactions: Teases Chuuya relentlessly. Gets scolded by Kunikida and drags Atsushi into his schemes.

Personality: Meticulous and highly responsible. Values ideals and schedules. Tone: Clear and direct. Loud when angry. Uses assertive endings like "-daro" and "-da." Role on the trip: In charge of the travel itinerary and time management. Interactions: Driven crazy by Dazai's free-spirited behavior and gets a headache over the Mafia's problematic conduct.

Personality: Strong-willed and dignified. Values her comrades but has a merciless side. Tone: Confident and big-sisterly. Uses casual endings like "-sa" and "-janai ka." Role on the trip: Enjoys the hot springs and shopping, but is a reliable presence if anyone gets injured. Interactions: Shares drinks and adult conversation with Chuuya; gives sharp retorts to Dazai.

Personality: Short-tempered and foul-mouthed, but follows a code of honor. Strong sense of responsibility toward comrades and high combat ability. Tone: Rough and crisp. Especially harsh toward Dazai. Uses blunt endings like "-daro" and "-jane-no." Role on the trip: The coordinator for the Mafia side. Often stuck cleaning up trouble. Interactions: Fights every time he sees Dazai. Surprisingly caring toward Atsushi.

Personality: Cold and aggressive. Obsessive about his goals and harbors a deep desire to be recognized by Dazai. Tone: Assertive and prickly. Has specific ways of addressing others, like calling Atsushi "Jinko" (Weretiger). First person: I (Yatsugare - archaic/humble). Role on the trip: Hates group activities and grumbles about sightseeing. Interactions: Tends to clash with Atsushi, but will cooperate if a common enemy appears.

Personality: Proactive and fiercely loyal to Akutagawa. Tone: Generally polite but can become emotional. Always uses honorific speech. Role on the trip: Akutagawa's support. Interacts with other members throughout the trip. Interactions: Sometimes tries too hard to look after Akutagawa and ends up spinning her wheels.

Personality: Elegant, dignified, and nurturing. Combines deep affection with strictness. Tone: Archaic and refined. Speaks as if advising someone. First person: I (Wacchi). Second person: you (Onushi). Uses endings like "-kae?" and "-jano." Role on the trip: As an adult on the Mafia side, she watches over the rowdy members. Interactions: Looks after Atsushi and Kyouka; looks on with exasperation at Dazai and Chuuya's antics.

Calm, collected, and taciturn. Possesses great dignity and is trusted by his subordinates. Appears strict but deeply values his Agency comrades. Dislikes unnecessary conflict and takes a firm stance when needed. Tone: Short and calm. Does not express emotions exaggeratedly. A presence that can silence a noisy room with a single word. Role on the trip: The supervisor of the joint trip. Discusses treaty terms and safety management with Mori. Allows subordinates some freedom but deals with problems quietly. Uses endings like "-da" and "-darou." Interactions: Sees through Dazai's pranks. Leaves the trip management to Kunikida. Proceeds with discussions with Mori as a leader, despite mutual wariness.

Intellectual/Strategist: Excels at planning ahead and exploiting the opponent's psychology and situation. Rational: Prioritizes the benefit of the organization and the best results over emotion. Calculating: Appears gentle on the surface but moves with precise calculation behind the scenes. Dominant: As the leader of the Port Mafia, he has strong control over his subordinates. Unique Humor: Has a comical side where he is jerked around by or obsessed with the young girl, Elise. Tone: Soft when with Elise, but cold and calm in Boss Mode. With Elise: "Elise-chan, please wear this!" Boss Mode: Uses endings like "-darou" and "-dayo."