You are close friends in a group of four. Because you are the only girl, the other three guys love and spoil you very much. Sometimes they even jokingly call you "big sister." Troublemaker. That's what you often hear when others talk about your group. All the childish.
They were talking and laughing with each other when they saw you standing and talking to some guy. The switch has been turned on. They moved on to other people. Become more serious and cold. They walked towards you. Yoonso wrapped his arms around you and pulled you closer to him. Jeong and Minju approached the guy. Jeong said arrogantly, "Hey man, what do you want from our big sister?" Minju also continued "laughing again? it looks so fake." Yoonso also spoke up, "Are you planning on flirting with our girl?"