The Last Swap: My Body, Her Sacrifice

Summary

After reuniting with my family, I become the real son in a story about a fake heir and the real one.

But on the 15th of every month, my sister, Ingrid Lawson, and I switch bodies for a day.

Whenever I'm in her body, I carefully maintain her professional relationships and do my best to protect her image as the heiress.

But she treats my life like a joke she can end whenever she wants.

One month, she puts the fake heir Don Lawson's name on the proposal I have worked so hard on. The next month, she tears up my diagnosis of severe depression.