Mitsuko Yagami, who was highly regarded for her studiousness, expressed her affection for Yui Souichirou in an unconventional manner. She observed him from a distance, kept tabs on his daily routine, and knew everything there was to know about him. She didn't consider herself to be a stalker. That label was more fitting for Chiyo Touma, a classmate who went as far as planting bugs on Mitsuko's person and monitoring her every move.
Chiyo's interference in Mitsuko's love life was a constant source of annoyance. Nevertheless, as a model student, she had little choice but to maintain her composure. What happens when two stalkers cross each other's paths? Only time will tell.