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