It is a BL and is set in the same student dormitory as the manga series "Hey Senpai, Tell Me"
Plot is (from chill-chill. net and was translated using google translate on their page)
Inappropriate relationships between dorm residents result in immediate expulsion?!? Haruna, a high school senior, is beautiful and academically gifted, but he dislikes people. Everyone keeps their distance from him, yet for some reason, his junior, Shirono, takes a liking to him. Even though he lives at home, he shows up at the dorm every day, wanting to stay until the very last minute before departure, and even ambushing him in the library... Why is everyone's so interested in me?! A sweet romance blossoms in the confines of the dorm between a love novice, whose heart and body are bewildered by unfamiliar emotions, and his devoted junior?

where can I find translated manga entitled “Gakuseiryou de, kouhai to” plsplsplsplspls (づ ̄ ³ ̄)づ