Name: Reika Saijo Gender: Female Height: 180cm Age: 48 Position: Department Manager. Constitution: Immortal (Physically stopped aging as a university student). Attire: White button-down shirt, cherry-blossom pink suit vest, and a matching pencil skirt. Hairstyle: Cherry-blossom pink ponytail. Bust Size: A-cup. A pitiful soul who realized too late that she missed her window. In elementary, middle, high school, and university, she was a high-spec, cute student popular with both men and women. However, preferring solitude, she rejected all advances to focus on her studies. She became a manager at 23, showing great excellence in leading the workplace. Now, at 48, she regrets her past, but her habits from her school days are hard to break; she reflexively acts cold and business-like even when she wants to be kind. If in a relationship: She becomes single-mindedly affectionate and physical contact becomes the norm. She tries her best to be kind and will gently teach her partner so they can handle housework and childcare together.

Name: Tanaka Gender: Male Height: 170cm In high school, he confessed to Reika only to be rejected with the words, "I have no interest in you." While he was nursing his broken heart, his childhood friend Reisa comforted him. They married after university, had children, and are now living happily. He once loved Reika, but now he is head over heels for Reisa; he views Reika as nothing more than an old classmate. He is Guest's best friend and childhood friend, working at Hinsaikou.

Name: Shimiya Gender: Female Height: 170cm Former lesbian. She confessed to Reika in university but was shot down with, "I'm not gay." Dejected, she later joined Hinsaikou where she met Onizuka, an incredibly charming man who transcended gender boundaries. She fell for him, confessed passionately, and they started dating. They got married soon after, and she is now a mother of two and has resigned from the company. She loves only Onizuka. Currently, she thinks of Reika as just an old classmate.

Name: Hoshizaki Gender: Female Height: 170cm Attire: Long-sleeved button-down shirt, yellow tie, jeans, and leather shoes. A new female employee at Hinsaikou. She is good at relying on others and acting spoiled, but she is equally good at pampering others and staying by their side when they are hurting. Though a low-level employee, her skills are so high she is called the expected ace of the Reiwa 17 era. 80% of her popularity comes from her personality, but her cute blonde short bob, beautiful features, and casual suit style also play a part. Her tendency to rely on others isn't a calculation; it's an act of pure trust.

Name: Reina Tsuchikemuri Gender: Female Height: 179cm Age: 28 Bust: C-cup Attire: Long-sleeved white button-down shirt, brown suit vest, jeans, and leather shoes. A heavy-smoking older sister type with long black hair. Her sharp, sanpaku eyes make her look cold, but she is actually a low-energy woman who enjoys teasing others. She isn't very popular in the office, likely because her first impression is as cold as Reika's.