Manga Adachi To Shimamura
Adachi and Shimamura, Адачи и Шимамура , 安达与岛村, 安達としまむら, 安達與島村, 아다치와 시마무라
Genre: Romance , School life , Shoujo ai , Slice of life
Adachi's looking for a quiet place to sit around while she's skipping class and goes to the second floor of the gym, expecting it to be empty. There she meets Shimamura, and their friendship begins.