I remember it was a quick transmigration novel. One of the arcs was set in the apocalypse, the MC transmigrated into a captain of a team of ability users, and who was in an alliance with four others going against a base, because that base treated them as canon fodder (and may have kept their families hostage before to control them). The original story of that arc was that the original protagonist had to conquer several males. One of the targets in this "life" is the ML, and he is an underling of the MC. Because there's no way the original protagonist could conquer the ML, his position was transferred to the Zombie King, who turned out to be original protagonist's exboyfriend. If the original fails to conquer the males, as punishment he will lose one sense. I recall that when one of the targets died, the original chose to lose the sense of smell. So when later he met with the zombie king and returned to the base, he did not realize that there was a smell on him, but another target blackened due to it. I will appreciate it very much if you can help me find the name of this novel. Thank you!
Oooh , I think it's Be friending the most powerful person arc 1. Because the most powerful person constantly changing, so there's no ml.