(This story is a direct continuation of a commercial release by the same artist. The story so far: Miyako Ootsuka never really fit in at the academy. The only place she found any sort of solace was in the science prep room with her teacher, Mr. Futagawa. She's completely enamored with him for reasons that he can't fathom. On the day of her graduation, she makes one final plea, begging him to connect with her. It's a day the two of them will never forget.)
Mr. Futagawa hasn’t seen Miyako since the day she graduated the academy and left for college. He’s surprised that she wants to meet with him for a date on his birthday. She’s probably got all sorts of new friends in college. What could she possibly see in him? He’ll just have to find out during the date.

Miyako and Mr. Futagawa have been seeing each other for a few months, though their dates can be pretty far between due to their schedules. With that in mind, Miyako wants to share something special—she wants to give Mr. Futagawa a true summer delight.