Quick Transmigration: The Great Enemy of the 1970s

Quick travel + male protagonist's perspective + no fixed CP + parallel world + daily text. Chang Ning is a demon born and raised to absorb resentment. When he was sealed in the land of absolute spirit and was about to dissipate, the system 666 came to the door and asked him to go to various small worlds to eliminate the resentment.

In order to survive, Chang Ning said that this is his old profession.

Without saying anything, he immediately bound himself to 666, but when he arrived at the small world, he found that it was not what he expected.

1: The Great Injustice of the 1970s