Akuyaku Reijou No Ane Desu Ga Mob De Ii No De Shinitakunai

giselle, the older sister of a villainess, faces downfall or death on every route. after remembering her memories from her past life, she begins re-educating her younger sister odile, who is the source of all evil, to prevent her from becoming a villainess! what's more, giselle's future fianc is also a troublesome man who is certain to fall into the dark side…!? giselle's struggle to live a peaceful life begins