Failed to Pass as a Villain [Quick Transmigration]

Tentative title and blurb.

The doctor told Yue Yiran's family that she had less than a year to live, and that they should let her do whatever she wanted.

Old Master Yue couldn't bear to lose his granddaughter. Following a fortune-teller's advice, he looked for a suitable match based on her birth date, only to find a woman.

Yue Yiran: I'm not interested in women at all.

Old Master Yue: Be a good girl, granddaughter. Let's give it a try first.

Before the wedding, Yue Yiran woke up and found that the world around her had changed. A voice in her mind told her she had been bound to a villainous, frail System. If she could complete the world's missions and make it out alive, she would be able to extend her lifespan.

But she failed every time, turning the story from one about a villain into one about a beloved darling.

Later, Yue Yiran finally returned to the real world. At the wedding... why does her new wife look exactly like the lunatic she kept running into in every world?

Genuinely frail, delicate flower bottom x split-personality, fragmented top

Theme: Love can heal anything.