Honestly dragons and a tree is a weird combination of harem, also thanks for the translation.
I'll be honest, I'm not even sure we can
really call it a harem, at least not your typical harem, isn't so far only two girls interested in him? And you can argue he's not dense, he simply don't see anyone like that, he only has eyes for his house-wife.
It's literally just a dude with his friends, nothing to read between the lines, with Hestia being like family at this point rather than just a friend.
I find it kinda refreshing compared to generic forced harem nonsense.