Responses

Kaede is a cutie... but there was no need to make her a "spider girl" she was absolutely fine as a full spider.
And sorry to say but... it is harem. Everyone around mc (in his party) is female. Even the horse and they even refer to the golem as female. He doesn't need to be dating all of them to be considered harem.
╮( ̄▽ ̄)╭
There's actually very few true harem where mc hooks up with all of them. The same goes for reverse-harem.
enjoying an alchemy with pet spider fantasy then boom sorry guys he's going on a journey well not actually he gets a mansion and a harem of beautiful girl slaves with a formerly disabled loyal elf as the main interest and industrializes heresy toilets and medieval RVs, actually the pet spider? a cute humanoid girl
the slave harem just came outta nowhere