@knightkamia , IKR, there are so many potential and possibilities with other kinds of companions/party members even if the character is a slave. I mean, even if the slave trope HAS TO BE a female for fanservice purposes (not that male character cannot be for fanservice but you know what I mean), there are so many other races/traits that the character could be, in a high fantasy setting, like harpy/dragonfolk/demon like succubus/dhampir because vampire might be too strong be a captured slave and less sunlight-resistant/oni/dwarf/nymph/etc...
So far, the female slave characters I've seen in isekai genre has mostly been submissive hurt of origins like elf or wolf beastfolk. I mean, even it has to be a beastfolk, there are so many different beasts within beastfolk category but it's always a wolf character wth? I don't understand why so many isekai authors have such limited and narrow creativity and obsession when it's a high fantasy world full of many other races, unlike Overlord, Re:Monster goblin, Slime, Kumo spider, like where are the non-wolf or non-elf other-races-stans isekai authors at?
The only isekai manga with male slave character is "Saikyou no Shokugyou wa Yuusha demo Kenja demo", but it's still a wolf character, who comes along with a female loli, and he doesn't even have a human face like most if not all of the main non-human female characters in isekai are.
Regardless, Imma read a few more chapters of this manga to see if the plot is actually interesting for now.