!! Warning: This hanjie is a linea, it is only logical with the constraint that the picture consists of a single curved line, thus each black cell has exactly two of its four nearby cell blacks (except the two ends) !!

This time, you will have to grease the wheels to make it work...

Difficulty : *****

Tested, logical (as a linea).
Edge-logic can be usefull. You can use the fact that no segments can cross right through a line where there is no 1.
Good blackenage.