Hayami Aki♀

Aki is Kouta's childhood friend and has always been his neighbour. Her parents and Kouta's parents have been friends since long before they were born, so their two families have always been very close. Aki is a very sweet and cute girl, her popularity with boys is incredible, just like with girls. She doesn't seem very receptive to Kouta but in reality she has realized longer than him that they were of the opposite sex.

"What if he slips into my bed in the middle of the night!?" and that's why she starts to panic when she learns that Kouta and her family will come to live with them for two weeks, to her mother's great joy...