With a Milk Bottle in My Mouth, I Conquer the World with a Brick

His modern soul transmigrated to another world, where he was reborn as a baby with his memories intact.

His tiny body was too weak to do anything, but he always managed to get a little milk.

His older sister turned him into a pervert, and even though everyone treated him like one, they still looked down on him.

He has a cultivation System that requires him to collect all kinds of breast milk before he can cultivate.

The first fifteen chapters are just filler, so feel free to skip them. Things only get exciting after chapter fifteen.