Kare no Niwa ni Saku Hana

Several stories, part of Miamoto Kano’s "Moony Trilogy" (Cherry Blossom Dorm Trilogy) that revolves around a men's dormitory in a regional university:

1) Flower That Blooms In His Garden 2-4) Frost 5) I Want to Gaze at You 6) The Reason We're Here 7) Bird on the 12th Floor