Hyena Girl: Blood and Guts

Features a bonus chapter by Rei Mikamoto.

A town haunted by the spectre of death!!
A chef in a black suit starts working for a ramen shop that has begun failing after the owner disappeared. The appearance of this chef sets off a series of strange events that lead to despair and the fight for 3 girls to survive.

A sequel is present in another Haino Ristuko book.