>>123973021Disregard this.
Original concept and character designs are by a doujin artist named RAITA.
/a/ loved the idea and made a huge sticky thread full of story ideas and circlejerking just as furious as the present day.
A KS development message board was created, died shortly after.
Project came back at a different website/board.
Most if not all people originally from 4chan eventually left the project at some point over the years.
It is not a "4chan product". But its kickoff point on /a/ is an acknowledged fact.