You get transmigrated into a typical reverse harem, but instead of being the villainess, or a side character - you get straight forward, the evil ex-heroine. Confusing? What's even worse is that a temperamental god...

it is 2123, the government have decided to pair everyone one up. one either is a yandere (soul mate) or darling (sweetheart), no others. unluckily, (Name) gets a lot of soul mates... Yanderes are NOT to be romanti...