宮坂 亜里砂

She is the mother of Takuya and Minori. A former housewife, Arisa started working some time ago to increase the family's income. Because of her work, she is very tired at night when she gets home and tends to fall asleep anywhere wearing only her underwear. However, her family comes first and she is always ready to prepare the evening meal for them despite her fatigue just to be able to talk and see the smiles of her children. 

She likes to tease her children a lot, Minori for her love affair and Takuya because he is very embarrassed to see her in her underwear, which makes her want to flirt with him as a joke.