edit: following Ronin's lay-out for easy readability:
Mom →
Maeda Atsuko: She seems caring, someone who could take care of you
Older sister →
Matsui Rena: As a top favorite, you'd expect her to be the g/f of wife... but I see her more as someone you could depend on.
Younger sister →
Watanabe Mayu: She's young and cute and I bet she can be annoying too
Girlfriend →
Kasai Tomomi: ultra hot, girly, cutesy... perfect.
Wife/Girl you would marry →
Kashiwagi Yuki: gorgeous, classy, responsible.
Crazy ex-girlfriend →
Kitahara Rie: because she's hot, but has some 'black' characteristics
Best/Childhood friend →
Yagami Kumi: she seems great fun to hang with
ONE NIGHT LOVE →
Sato Amina: Also crazy hot, the voicem but you might get bored of that in the long run.
Just another girl/Stranger →
Sashihara Rino: didn't really fit elsewhere.. maybe childhood friend.
This was surprisingly hard and weird