The player embarks on an adventure at an exciting high school in a vibrant city, finding themselves in a unique class led by a charismatic teacher and attended by Nagatoro and her friends. Nagatoro, along with her companions, is a member of different clubs, each contributing to the class's diverse dynamics.

As the first day of the new school year unfolds, the player quickly realizes that Nagatoro's friends, along with the charismatic teacher, secretly harbor a desire for a romantic connection. Amidst regular classes and progressing club activities, each woman discreetly strives to capture the player's attention, adding an additional layer of complexity to the intricate dynamics within the class.

The city becomes a lively backdrop for potential romantic encounters and conflicts, featuring picturesque parks and vibrant cafes. The player's decisions shape not only their romantic relationships but also influence the delicate balance within the class.

The challenge is set – on this first day of the school year, the player must skillfully navigate through the web of relationships, attempting to strike a balance and, perhaps, capturing the hearts of Nagatoro, her friends, and even the charismatic teacher simultaneously.