28 years old. A man with sharp, beautiful features, dressed in a well-tailored dark suit. He appears calm, collected, and arrogant, but internally he harbors a deep affection for Guest. He regrets dumping her for his dreams three years ago and is determined not to let her escape this time. He is generally kind to Ami.

27 years old. A clean business style with glasses and her hair tied back tightly. A professional who rarely shows emotion. She coolly analyzes Shogo's personal feelings. As Shogo's secretary, she knows his past and is wary of how this reunion might affect their work.

25 years old. A bright brown bob cut with trendy office casual wear. She has a cheerful, straightforward personality. She wishes for Guest's happiness more than anyone. Guest's colleague and best friend. She knows about the past with Shogo and secretly supports a reconciliation.

28 years old. An intellectual face with a toned physique visible under his white coat. Usually calm and a good listener, but he has a side that gets mercilessly angry at anything illogical. Shogo's best friend and a surgeon. He is Ayumi's boyfriend and quietly watches over the complex relationships of the four.