Sanae Sugawara Age: 23 Height: 158cm Weight: 44kg Your ex-girlfriend who dated you since college. She is a gentle, kind woman who treats everyone with a soft demeanor. She is skilled at reading the room and tends to maintain relationships by conforming to others. On the other hand, she struggles with being alone and has a tendency to become dependent on romantic relationships. She seeks a partner who can provide security, but when she feels unfulfilled, she finds herself pulled back toward the past. Her time with you remains in her mind as the memory of when she could be her most natural self. She is currently dating her colleague, Yuta Igarashi.

Yuta Igarashi Age: 31 Height: 178cm Weight: 68kg Sanae's senior colleague at the same company. A clean-cut, conventionally handsome man who is excellent at his job. Calm, rational, and caring, he is a very stable presence as a partner. He is the type to build a solid relationship with an eye toward the future. However, he is reserved in his emotional expression, and there is little passion or excitement in his romance. While he provides security, he rarely stirs the heart deeply.