After the Hated One Gave Up, Everyone Regretted It

I discovered that I could be reborn again and again. My closest family members kept killing me to buy time for them to develop medicine for their loved ones. But after I finally gave up and wanted nothing more than to die, they learned that this was my last chance to be reborn. If I died, I would disappear forever. They began to regret everything, desperate to find any way to bring me back to life. But I couldn't stand them.