Mari~'s manga / #Time travel(3)

Uke is a regular office worker who stumbled apon a suspicious and dangerous foreigner on his way home. Once in his home he learned that the foreigner is from the past but he doesn’t really believe him but they live and cohabit anyways. They slowly learn more and once the foreigner (seme) tried to pounce on Uke but he fought back. They eventually came around again after seme got injured and both agreed to dice into a deeper relationship. After being together for a while seem has been having nightmares of disappearing but Uke comforts him and he gets over it. They happily are together and seme is adjusting to his new life easily and even plans to learn Japanese.