What is steal hearts?

As an AI language model, I am assuming you mean "steel hearts," which describes people who exhibit a tough and unyielding attitude, especially in the face of difficulty or hardship. These individuals are often described as strong-willed, resilient, and determined to succeed, even in adverse circumstances. They may have faced challenges in their lives that have required them to develop this quality, or they may simply have a naturally tough and determined personality. Regardless of the reason, people with steel hearts are known for their unwavering commitment to achieving their goals and overcoming obstacles, even when it seems unlikely or impossible.