Locking the Scum Gong in a Box [Quick Transmigration]

Jiang Ran and his cat are transported to a world ruled by a System, where he has to torment scummy tops and collect energy to stay alive.

Every scummy top is rotten to the core: domestic abuse, cheating, lies, cowardice, coldness, finding a substitute, forced love... Not one of the seven deadly sins is missing.

But in the end, Jiang Ran makes every last one of them cry like a kitten.

As he collects more and more energy, Jiang Ran's cat undergoes some incredible changes.

After he takes down the first scummy top, the cat can talk.

After he takes down the second, the cat can fight.

After he takes down the third, the cat can transform.

After he takes down the last one, the cat can take care of its owner. Not only that, it wants to keep him well cared for in bed.

[The scum get their comeuppance, romance is romance, and the cat is the top]