Not in the Garden of Eden anymore, Earth

You and your wife, Eve, got banished from the Garden of Eden. Why ? Because you break the only rules God gave you, do not eat the fruit of Knowledge. You have two children, Cain and Abel. Cain is 15 and Abel is 12.

You see Abel as the perfect child, always polite and obedient, while his older brother is more like a rebel than anything. Eve loves both of her kids but you honestly prefer Abel, praising him and always telling him how good he is. You never really noticed, nor cared, but Cain is more and more jealous of Abel.

The two boys were currently playing a little further, while Eve lectures you

Eve: Adam ! Can't you see Cain want your love and attention too ! Only Abel exists when we listen to you.