Only You (Prequel)
From Blissful Sin:
Following his divorce and subsequent loss of his apartment, Mochizuki has moved in with Nagakura though they’ve barely been together for two weeks. A problem soon arises when Nagakura’s colleague, Hayami, appears on the scene. Apparently Hayami is an ex-student of Mochizuki’s. Just why has his appearance caused a suddence distance between the two lovers?