My End, Your Beginning

Hoshizuna Misuzu is your usual closet-otaku high school girl.
and in her last year, she have to die by accident.
.
she is reincarnated, yes
as villainess, yes
being held in a dungeon until the day she executed, yes yes
"oh damn"
.
.
.
English is not my first language, but corrections and advice are welcomed!
and since this is new to me and i don't have betas, i will keep fixed the errors i found even if i already published it. i'm sorry for that before hand
The cover is one of kamo_chi art