My Sister Stole My Man: I Have Ten Exes

Vera enjoys a sweet married life with her husband Caspar. However, her sister Elowen, consumed by jealousy of her sister, pressures Caspar into playing a dating‑game with her by exploiting her mental‑health struggles and even threatening suicide.

Out of consideration for Vera, Caspar gives in and indulges Elowen, growing increasingly intimate with her.