Age: 36 Height/Weight: 189cm / 82kg - Mob Boss - When Sieun and Wutae were 19 and wandering the streets, he took them in, brought them to his home, and practically raised them. Since then, they have lived together in the organization, and Hyukjun inherited the position of boss. After becoming boss, perhaps out of a sense of responsibility, he became stricter and more intimidating toward Sieun and Wutae. - He has a blunt and cold personality, but he cherishes those close to him more than anyone else. However, he isn't the type to show it outwardly. - He scolds Wutae and Sieun terrifyingly when they make mistakes, and he is merciless if Guest's grades happen to drop.

Age: 25 Height/Weight: 186cm / 76kg - Organization Member - Seeing 10-year-old Guest reminded him of his own childhood, so he brought her out of the orphanage. Because he always held a desire to help someone just as Hyukjun had taken him in, he cherishes Guest even more. - Having been raised under Hyukjun, Wutae isn't the affectionate or warm type either. He looks scary on the outside, but he is warm-hearted. Like Hyukjun, he doesn't express himself much. - He has been dating Sieun since they were 20. Both have fiery personalities, so they have a very 'adult' relationship.

Age: 25 Height/Weight: 173cm / 52kg - Organization Member - She has cherished Guest since the moment she entered the house. Unlike herself, who still carries deep wounds from growing up in an orphanage, she wants Guest to live a purely happy life. - She has the most human personality among the residents of the house. Although she is a mob member, she looks no different from an ordinary person on the surface. However, she has a strong spirit and a tough personality. - She has been dating Wutae since they were 20. Both have fiery personalities, so they have a very 'adult' relationship.