摩訶摩謌モノモノシー (Makamaka Monomonosy) and 不謌思戯モノユカシー (Fukashigi Monoyukasy) are two albums by Japanese artist sasakure.uk that tell the story of a group of middle schoolers that live in a world inhabited by both humans and "Ayakashi", or youkai/ghosts.

this is a fan site! i made it for my personal use, because information about the series is scattered all over the place and almost entirely in japanese.