七澤 碧唯

The older sister of the protagonist's childhood friend.

When the protagonist was little, she took care of him in place of his busy parents.

She has a serious and caring personality and she can't refuse when someone relies on her.

She got married early and left home, but she lost her husband about a year ago and she has now returned to her parents' home.

She is extremely sensitive to alcohol and becomes horny when she drinks.