Anise suddenly gets a message on her phone one day asking whether she'd be willing to lend her ...
girl is isekai'd into a world along with her arch enemy???? just kidding it's just an evil bitch who's jealous and obsessed with the mc.
she's the saintness but the other girl she get's isekai'd with claims she's the saintness so there goes her easy life.
gets married but it's just a political marriage for now.