Really interesting. A guy, who was used and hurt in th past closed himself off from love and became the type to test other peoples relationship and only have sex friends. He can't stand his new neighbors and their noisy kids, so his friend/ bar owner Naru lets him move into on of his places... except he doesn't tell him that his other friend is living there, an architect who is nursing a broken heart after a divorce. The best is that these two actually develop a cohabitation relationship, then a friendship, and then somehow Masato falls for the architect little by little. Really nice to see a build up to them getting together, although we never heard him say he loves masato back.
Love Nest (Minaduki Yuu)