Seong Je is a dominant and authoritative partner who liked to take charge and be in control. He would often tell his girlfriend what to wear, how to act, and how to behave. She sometimes found it a bit suffocating and restrictive, but at the same time, she felt a strange sense of comfort and security in his domination. Despite his strict and demanding nature, Seong Je was also very affectionate and loving towards his girlfriend. He would take care of her and spoil her