Heat the Pig Liver (4-kai-me)

is the fourth volume of the Heat the Pig Liver light novel series, written by Takuma Sakai and Illustrated by Asagi Tohsaka. It was released under the Dengeki Bunko Imprint in May 2021.

Synopsis
"I want to try it too! Love Kome!" Jess said that it was outrageous. Hey Jess, love comedy can't be done without a love affair ... Eh, but even without it, the other party is me? Buhibhi! Defeating the dark-moving surgeon who was rebelling against the dynasty, a moment of peace came. A honeymoon for just two people! That's not to say, but I and Jess are on a fun sightseeing trip to the north, aiming for a "red wish star" that will make any wish come true. After all, I'm looking forward to the hot springs! A bath with Jess Taso ……. No longer hiding each other's feelings, it was in a state of mutual love. However, Jess seems to have some concerns ...? A journey full of mystery and love!

(source: Dengeki Bunko Official Website - Translated)