1st story is about sumi? and yoshino. sumi has two dads and keep it as a secret from everyone. and yoshino is in love with sumi. afterwards their main story, they went to university and live together.
2nd story is about sumi's dad and his supervisor which is editor i think. supervisor, yuuki motoi, is love the father, sunohara, and he resembles writer's wife who is passed away. dad is mourning for her but yet he is also fell in love with his supervisor. after the son went to university, the couple are left alone.
Mizu No Haru