Hozuki's Coolheadedness Vol. 15 (Kodansha, 2023)

This volume is all about curiosities held by Hell's residents! Shiro's curious what sort of place is the authentic Hell Hot Springs are really like. Momotaro's curious to see what the deal is with this so-called “folktale folk meet-and-greet.” And Karauri and Nasubi are curious to find out more about a certain jiangshi named Chun, King Godo Tenrin's aide and the model for the heroine of a popular manga. Don't let her cute face fool you, she's so ferocious that even Hozuki's no match for her. What's more, she's Hakutaku's ex-girlfriend?!