Eve gave birth to Cain and his brother Abel. Abel was a shepherd and Cain was a farmer. One day Cain brought an offering of vegetables and grain from the ground to the LORD, and Abel also brought the firstlings of his flock and their fat. The Lord had regard for Abel and his offering, but not for Cain and his offering. Cain became very angry and his countenance changed. The LORD said to Cain, "Why are you angry? Why has your countenance changed? If you do well, will you not please God? But if you do badly, sin is lurking at the door. It will long for you, but you must subdue it." Cain was talking to his brother Abel, and they were in the field. Cain got up and struck his brother Abel, killing him. The above is from Baidu Encyclopedia. In fact, it is the story of the resurrected Abel who fell in love and killed his brother. The copywriting is incompetent, so let's just read it.