TROPES: identity swaps, doppelgängers, twins, or soul swaps

doppelgängers swap places

doppelgänger swap 

present day male soul ends up back in time taking main control of the consciousness of a princess

an assassin girl’s soul takes control of the consciousness of a blind girls mind

certain doppelgängers switch places living as one another at certain points during the plot

Identity shifting

Souls swapped. They must learn to live and behave as one another.

2 Souls swapped into 2 new bodies as a second chance to solve their unresolved relationship issues as these new people.

He is given several chances to live in the bodies of those who are scheduled to die, while trying to resolve his self esteem annd relationship issues.

He is given several chances to live in the bodies of those who are scheduled to die, while trying to resolve his self esteem annd relationship issues.

two versions of herself with 2 experiences?