Please help it's a chinese bl where the uke time traveled or cross world something in his ...

Please help it's a chinese bl where the uke time traveled or cross world something in his world there ABO but in the seme world there is no such things as ABO he got pregnant by the seme and I guess he is later able to travel back to his world but he comes back to the seme world. Seme starts to fall in live qith the uke