This is easily one of my two favorite performances brought by Chasuke-san, to my personal taste. Mainly because it involves a lot of begging, and boy did he beg well, it's sincere, hard to refuse.
When I think about it, the beginning of this story is really good. You, as a newlywed wife, suddenly found a strange door seemingly leading under the house while vacuuming the library, and your husband suddenly shows up behind, smiling, "ahh, you've found it." Jesus, that could be the beginning of any horror movie.
Also, the naming of each track and files is neat, easy to understand, pleasing to the eyes. I bought other works from this circle too, so I can tell they seem to follow clear rules. Nicely done, even people with OCD would compliment it.