Not necessarily. The previous cover had kittens on it. So, maybe i'm reading too much into it, but those could be their cat babies
It was mentioned before that the Beom family are constantly approached by near-extinct families to help revive their species, which makes me think the other party’s species is more likely to be born than the tiger, which would explain why the tigers are encouraged to have so many flings and why there isn’t a surplus of tigers from said flings
Idk the previous cover seems to be just Yumin's form in relation to him & Taejun
SPOILERS!!!
they have some of both
The saddest thing i find reading this is the mission is very likely to fail with it being a tiger child and Yumin won't have emotions of his species still being endangered