Reading these comments I've realized it seems a lot of people here probably haven't read pendulum, it's basically the story of kai and ruard (the couple you saw in chapter 8, and you can see kai in chapter 5 the twins love him (≧∀≦) ) if you had read it you would have been able to guess the baby in the last frame it's theirs (yes, this is comfirmed, it's not me making assumptions)
Reading these comments I've realized it seems a lot of people here probably haven't read pendulum, it's basically the story of kai and ruard (the couple you saw in chapter 8, and you can see kai in chapter 5 the twins love him (≧∀≦) ) if you had read it you would have been able to guess the baby in the last frame it's theirs (yes, this is comfirmed, it's not me making assumptions)