❤️The guy's sister meets a new guy and falls in love.
🤔The guy is initially suspicious of his sister's new boyfriend.
😠The guy confronts his sister's boyfriend and warns him to stay away.
😲The guy discovers that his sister's boyfriend was only pretending to be bad and actually saved her from a manipulative person.
💍The sister's boyfriend proposes to her in the end, proving his love and commitment.