I'm pretty sure it's a fantasy romance (maybe isekai?) where at the end they have twins and the little girl goes back in time to see them and the little boy follows after her. They don't realise that she's their kid at first but the dad figures it out.
I'm pretty sure it's a fantasy romance (maybe isekai?) where at the end they have twins and the little girl goes back in time to see them and the little boy follows after her. They don't realise that she's their kid at first but the dad figures it out.