This and Gokiburi no Ie are really unique amongst Inuki's older works because they don't focus on children, since these were published in Ladies' Comics magazine instead of the typical shoujo magazines she tended to be in
LOVE THE REFERENCES TO ALL THE OLDER WORKS!!!! I wonder if Hino ever intended to make this his last work... it is the manga with all of his favorite motifs, it feels like the most Hino thing ever...