MTL - Back to the Age of Dinosaurs - ~ The 148th. The Dragon: Now is regretting

Fat kitty died, killed by a lightning strike while stealing a chicken leg! And then, the kitty was reborn into a rich family in the 80s, which, having had nine grandsons, longed for a granddaughter and instantly made her the most adored one in the family! She was so happy with her life, being pampered by grandma, adored by parents, and protected by big brothers. Of course, it would have been even better if that big bad wolf hadn't cast covetous eyes on her.

Finding himself in an Last Airbender without an airbender around, a transmigrator waterbender goes on an adventure to stop the worst from happening to him.

Huang Dan’s pain nerve is innately different from the ordinary people. A little tore in his skin can cause him to sweat all over his body painfully to the point of him unable to make a word out.

Somehow, he began to cross world, following Mr. System to do the tasks…

In the first world, Huang Dan realizes what it means to die painfully and to live to die again.

TL’s summary:
MC suddenly transmigrated and is bind to a system, requiring him to solve mysteries. Born with a higher degree of pain sensitivity, he met different people in the different worlds and learns what kind of emotion smiling is.

- Description from Novelupdates