The first couple wasn't the best. I don't really like open relationships because then I can't feel the bond between the characters. That scene of the uke having sex and describing it through the phone to the seme made me extremely uncomfortable.
The second couple was cute,but I saw no spark there.
The third couple was good. The seme discovering himself and the uke being so closed up by showing anything because he keeps getting hurt because he's gay, is a very real situation. Wasn't amazing tho.
Namae mo Shiranai Machiawase