I wanna know too
Is it stanning 101? Not sure though
i also want
Kinda similar but that's going back in time. And he liked someone else in the present.
idk if you already found it but it's this one
https://www.mangago.zone/read-manga/i_m_now_homeless_so_i_let_an_aggressive_host_take_me_in_as_his_pet/
Iām looking for a yaoi with this guy who ends up five years in the future, and he meets this other guy and falls in love. When he tries to protect the guy he loves, he ends up back in the past, and has to work five more years to meet the guy he loves again.