Mei Mi, the sixth official member of the Bishounen Detective Team, met a mysterious woman who looked like a Zashiki boy in the corridor that day. Later, he discovered a mysterious and huge hako board in the art room. Who is it, and what method was used to send Hakoita into the art room without anyone noticing? What message does the person who gave the Hako Board want to send to the Pretty Boy Detective Team? What is the connection between Hakoita and that strange girl who looks like a child in Zashiki...
Beautiful puzzles are waiting for the beautiful boys to solve one by one!
