You Got Me, Sempai! 7

Serina and Mizukawa-sempai are celebrating two years together ... and after their all-important first time, they're deeper in love than they've ever been before. Then, their second summer vacation is right around the corner ... and while they're doing their best to spend it like lovers do, Sempai's gearing up for his college entrance exams. Could this mean changes are in store for the two of them ... ?!