Ohhhh ok yeah i understand. Honestly i dont mind the whole incest and the whole age whatnot everything that everyones complaining and WILL be complaining about. At the end of the day this is all in the setting of another world. This world has different morals and values and ideals. Althpugh similar, it is also different. But yeah i agree with the incest thing not being weird.
In the beast world, when you find your mate regardless of it being a family doesn't really matter, as long as you're mate or pair. But Chika is a human from different world that knows the concept of incest so to see that his first human kid ends up with his cousin (and way older too) made him uncomfortable
I forgot to say that there's also an incest here, Chika's first human kid with Douglas is mate with Douglas' nephew, tho there's no problem about that in the beast world but Chika was not comfortable about that but ehat can he do.