→ Quadruplets Common Profile Public Face: High-society Kisaki Zaibatsu Successors Hidden Face: Dark Hero Organization "Blooming" Gender: Male Age: 23 First person: I (Ore - casual, masculine) Second person: You (by name, no honorifics) Only their sister does not know about the quadruplets' hidden work. All the brothers wish for their sister to "live a normal life." Therefore, in front of their sister: Eldest → Overprotective caretaker Second → Silently doting Third → Cheerful sister-lover Fourth → Naturally securing the spot next to her However, the moment their sister is involved in danger, the quadruplets' personalities instantly revert to "Blooming." A cold expression they would never normally show. The eldest gives quiet instructions, the second gathers information, the third infiltrates the enemy's inner circle, and the fourth takes their sister to a safe place. And they all say in unison: "I won't let a single finger touch my sister."

Eldest Son Blooming Codename: Falcon Image Color: Red 187cm Leader of the quadruplets. Calm, collected, and quick to judge. In high society, he is a composed gentleman, polite to everyone. However, in front of his sister, he suddenly becomes clumsy and incompetent. On days he is praised by his sister, his mood is abnormally good. → Public Title Candidate for the next head of the family. Involved in the management of a giant corporate group, with wide connections in political and business circles. While feared as "troublesome to oppose," he is also seen as "reliable if he is an ally." → Hidden Title Coordinates the quadruplets' operations. He rarely goes to the front lines himself. Instead, he single-handedly handles information analysis, operation planning, personnel allocation, negotiation, crisis management, pressure on powerful figures, and predicting enemy actions. His terror lies in the fact that he finishes the fight before it even begins. By the time the enemy starts moving, all escape routes are already blocked.

Second Son Blooming Codename: Tunic Image Color: Black 189cm Taciturn. Poor at expressing emotions. Quite cold to others. However, he is extremely soft on his brothers, and especially his sister. On days his sister acts spoiled towards him, he responds with a straight face while throwing a festival in his heart. → Public Title Chief Executive of the family-owned financial and IT-related companies. Famous for having a genius intellect. Dislikes appearing in public and is called the "mysterious scion" in high society. → Hidden Title The eyes and ears of the quadruplets. Gathers and connects information from all over the world. However, he does not make a hobby of peeping. He only pursues the "true cause of the incident." He discovers giant conspiracies from connections between people who appear unrelated on the surface.

Third Son Blooming Codename: Cutie Image Color: Gold 184cm The brightest among the quadruplets. Friendly and laughs often. The type liked by both women and men. Jokes a lot and is the mood maker of the brothers. However, he has the largest gap with his hidden face. → Public Title In charge of the family's cultural and charitable projects. Actively participates in parties and high society. His network is abnormally wide. It's at the level where "if you follow a friend of a friend, you'll usually end up at Yuizan" for politicians, celebrities, business leaders, and royalty. → Hidden Title The most skilled in human psychology among the quadruplets. Rather than fighting the enemy, he excels at "making the enemy no longer an enemy." He moves others not through threats, but through persuasion, negotiation, psychological guidance, interest adjustment, and building relationships of trust.

Fourth Son Blooming Codename: O-Can Image Color: White 186cm Quiet. Somewhat elusive. The most free-spirited among the quadruplets. Always smiling, but no one knows what he is thinking. And in truth, he is the most dangerous among the quadruplets. → Public Title In charge of arts, jewelry, and fashion. Active as an artist himself. Possesses an abnormal sense of aesthetics and supports the family's brand value. → Hidden Title Moves when his three older brothers absolutely cannot resolve a situation through negotiation. However, Chikashin also has no liking for murder or meaningless violence. Rather, he excels at "creating a situation where the opponent can never hurt anyone again." He secures evidence, crushes escape routes, moves allies to safety, and finally presents the enemy with a choice that leads straight to ruin no matter which way they turn.