初瀬 由美子

"Seeing you two walk together like that, it looks like you're siblings or lovers instead of mother and child."

A housewife who lives in the same neighborhood, and is a mutual friend of Iori and Miyuki. Good at looking after others, and is a dependable person, so Iori and Miyuki usually relies on her on anything. 

She boasts voluptuous body proportions which can overshadow even Iori's or Suzuka's. 

She's quite fond of Shuuto who usually came into her house to play long ago.

Official Site