Hiro, severely overworked, can barely function outside his toxic workplace. When he encounters Kai, a childhood friend he had once promised to marry, he finds he is steadily regaining a sense of purpose - yet Kai's motives remain unclear.

Reiko, a young and beautiful teacher, takes a teaching job at an old, run-down high school. The male students in her class are mesmerized by her beauty and become infatuated with her. One ...