So if anyone's interested the idea for this work came from a twitter anecdote So a guy was in a train and he heard two "housewife-like" women talking One of them said "...going to play with onaho girl on the weekend", and onaho is like sex toy, fuck hole, sex sleeve but from the context of their talk he figured that "onaho" is a short version of onaji hoikuen no ko, kid from the same preschool/day nursery thingy, so they were talking about their kids playing with other kids but author of this tweet being a dirty man imagined something like this...