A world where wearing pants and not wearing pants exist simultaneously. The state of things cannot be determined until they are observed. Nakata, a dull chemistry teacher, is a straight-laced and unsociable person, which makes the female students creepy. However, one eccentric female student approaches him with great curiosity. As Nakata is seduced by her, feelings he has never felt before begin to sprout... Even now, as our lips join and our tongues entwine, is this relationship between teacher and student, advisor and club member, man and woman, male and female, me and her, appropriate or inappropriate? The state of things has not been determined. It has not been determined.