"That's right... Remove those beads and join Rokudou-kun's harem as lover and master."
"No I'll never turn to the Dark Side!"
"Then, young Skywalker, you will die!"
Looks like another job for Rokudou and his Mark of Evil Bane!
Great... now that she's bad again, she'll fall in love with the MC, enter in conflict with Ranna, and get her ass handed to her in 2 seconds.
Then she might decide to stay good this time.