Roommates to Bedmates

In their first year of high school Tsukishima Kei and Yamaguchi Tadashi were going out but then for some reason Yamaguchi broke up with Tsukki. 3 years later Tsukishima enters college and meets his roommate, the boy who tore his heart into tiny pieces: Yamaguchi. TsukiYama TsukkiYama TsukishimaxYamaguchi YamaguchixTsukishima yaoi Haikyuu college life so sort of AU I guess