Transmigrated into a different word that has a role. (prince/princess/noble/commor/extra-etc)

his role is a new god.

Transmigrated into a villainess

the novel is great. mc transmigrated into the current world, honestly the manga did not do it justice.

MC into a prime minister and father of the villainess priestess. remembered very late into the game so watched as he reverse black and white lol. it's so good, I even remembered reading the novel, here's the link if you want to read the novel : https://www.novelupdates.com/series/if-you-devour-poison/?pg=1#myTable

mc is the crown prince. like the title wrote- who has sick body.

into a trashy(?) prince

transmigrated into a demon prince