I'm looking for novels where the protagonist had a difficult life, worked hard to the point of having a nervous breakdown, and was transmigrated or reincarnated in another world. Now all he wants is to have a quiet, carefree life. Like novel Dao of Salted Fish
I looked this up and the synopsis is pretty interesting. Most reincarnation novels with a dark past, often goes with the hard and succesful route with their new life.
novelupdates (.) com/?s=salted+fish&post_type=seriesplans just type "slated fish" in the search box of novelupdates