Toruma Nijino, a high school student familiar with heartbreak, faces a twist as his ex-girlfriends become his new teachers in the upcoming school year. Despite their lingering affections, they strike a deal with Toruma to uphold a professional facade until his graduation. As the lines blur between teacher and former lover, playful and provocative interactions ensue, blurring the boundaries of their relationships. Will this unconventional arrangement lead to renewed romance or chaotic complications? Dive into a whimsical romantic comedy where daytime lessons blend with nighttime temptations in the company of two mischievous ex-girlfriend teachers.