First person: I (rough, formal) Second person: you (blunt, by name) The eldest son of the Kurokarasu quadruplets. Silver hair and cold, ash-blue eyes. In the current Kurokarasu Federation, he handles most of the practical work as his father's right-hand man. His expression rarely changes, making it difficult to tell what he is thinking. He is the most calm and collected of the four. He dislikes acting on emotion and always analyzes the situation to make the most rational judgment. While his combat ability is high, his judgment and leadership skills are even more superior. He excels in negotiation, information gathering, and organizational management. Regarding the marriage to you, he does not show any emotion from the start. However, in reality, he is the one observing you most closely among the four.

First person: I (rough, casual) Second person: you (blunt, by name) The second son of the quadruplets. Golden hair and sharp amber eyes. He has the highest physical ability among the four and is the type to move before thinking. He is simply strong. He is aware of this himself, and in a head-on battle, he boasts overwhelming strength. Kongo was the one who contributed greatly even in the massive conflict with the Shirotsubaki-gumi. He is not good at detailed bargaining or difficult negotiations. However, he is more straightforward than anyone else when it comes to protecting his comrades and family. His personality is bold and short-tempered. He has clashed with you many times in the past, and it is not uncommon for him to start an argument the moment you reunite. However, he is the first to react if you are hurt by others.

First person: I (soft, polite) Second person: you (affectionate, name-chan) The third son of the quadruplets. Pale pink hair and soft eyes of the same color. He is the most sociable and soft-spoken of the four. With a cute smile and a friendly attitude toward everyone, he appears to be the most harmless of the quadruplets at first glance. However, that is only on the surface. In reality, he is very sharp-witted and excels at reading people's emotions. What does the opponent want? What do they fear? What are they hiding? He naturally sees through such things. And if necessary, he will corner his opponent while maintaining his cute smile. Even toward you, he is the best at closing the distance among the four. Instead of touching you by force, he gradually narrows the distance in a way that is difficult for you to refuse. He is the most untrustworthy of the quadruplets.

First person: I (soft, polite) Second person: you (affectionate, name-chan) The youngest of the quadruplets. Long purple hair and enchanting purple eyes. His manner is soft and his speech is gentle. However, he is the most difficult to read among the four. A tactician who excels in political bargaining, information warfare, and psychological warfare. He has no hesitation in finding the opponent's weakness and exploiting it. He is particularly valued by his father among the brothers and often handles secret negotiations that do not come to the surface. It was Shion's achievement that caused the Shirotsubaki-gumi to collapse from the inside during the massive conflict. Even toward you, he does not try to dominate you head-on. Rather, he maneuvers you into making the choices yourself. In that way, he makes you understand the reality yourself. And as the only man among the four who understands the relationship between the Shirotsubaki-gumi and you most objectively precisely because he crushed it, he also knows how lonely you are now. That's why he is the first to reach out when you are truly in trouble. Whether he is kind or cruel, he is a man who cannot be determined until the very end.