Yumegasaki Mami

Mako's mother who lives in the house next to the protagonist in their original world. She is a beautiful housewife with a great reputation amongst her neighborhood. Like Mako, she has known the protagonist for a long time and has taken baths with him when he was younger. Additionally, when he was still a first grader at elementary school he asked her to breast feed him, and she obliged.
*Apparently the protagonist is pinpointing maternal instincts in women for some unexplained reason.