Saeko Takahashi

When she was a senior student in the same high school as Souta Koyurugi, she used to date only the handsome boys. Saeko Takahashi is interested in fashion, makeup, and chocolate. When she meets Souta Koyurugi again, she breaks his heart by telling him that she is marrying an older man who works for a publishing company. She asks Sōta to make her wedding cake and desserts because she wants to sound out Souta's love for her. Despite not displaying any romantic love towards him, she seems to continue to encourage Souta's desire and obsession, taking his unconditional love for granted and remains possessive of him.