Sachi's Monstrous Appetite manga volume 3 features story and art by Chomoran.

Despite having to fight against the occasional menacing watari, Makie and Sachi are able to continue developing as a couple. But as their relationship grows stronger, it seems that the watari they’ve been taking on have also been getting stronger. So far, Sachi has been able to protect Makie with relative ease, but that just might change with the appearance of a terrifying behemoth that comes to Makie’s school in the middle of their Cultural Festival. Will this new threat spell doom for Makie and Sachi? And what is the root cause of Makie’s unique scent that seems to be attracting such dangerous watari?