Become an Evil Fairy Starting from Changing Your Black Heart

Qin Yi realized for the first time that he had no heartbeat, and he panicked. But grandpa told him, "It's okay. If this one breaks, just replace it with another one. You won't die anyway." Hearing the news, Qin Yi was very excited, "What kind of heart are you going to give me, grandpa?" But when grandpa took out this dark and light heart, Qin Yi was surprised, "A black heart! Am I still a human being?" "There are many benefits to a black heart!" Grandpa opened Qin Yi's chest in a hurry and replaced the black heart directly. You can learn what others dare not learn in the future! You can eat what others dare not eat! You can kill what others dare not kill! In short, kill first and take later, don't be afraid of cause and effect. Cultivation is all hard, but the benefits are for me. It doesn't matter, who told me to be a black-hearted reverse cultivator!