I'm a Behemoth, an S-Ranked Monster, but Mistaken for a Cat, I Live as an Elf Girl's Pet manga volume 4 features story by Nozomi Ginyoku and art by Taro Shinonome.

After making a complete recovery, Aria and Tama return to dungeon-crawling! And thanks to some stronger yet more revealing new equipment, their jealous and scandalous flirting receives a power-up as well! Meanwhile, they meet a mysterious, wild girl in the dungeon who happens to share a strange connection with Tama’s former self. Another tale of reincarnation begins...