For Ransom, I Cured the Hostage's Terminal Illness

As soon as Li Shi'an opened his eyes, he saw a weak girl tied behind her back on a stool, her mouth sealed with tape, and the environment he was in was actually an abandoned building in the suburbs. The most important thing is that he is holding a bright dagger in his hand. On the other end of the phone, a woman's urgent and worried voice sounded: "You must not hurt Nuan Nuan. She is already suffering enough. She has congenital heart disease. The doctor said she only has a few days left..." Li Shi'an's heart sank, God, are you kidding me? You gave me a chance to travel through time and be reborn, but you actually asked me to be a kidnapper? And just when Li Shian was at a loss, an electronic prompt sounded with a ding. Li Shi'an was overjoyed. Sure enough, every time traveler and reborn person had a cheat! 'System binding...' Huh?