Creasing edge with "Subdivision surface" modifier on rounded surface As you can see on the images below, my problem is when I crease an edge to get sharpness with "Subdivision surface" modifier on, eventually, I get that pointed convex edge.

How can I avoid this 'bug' without complicating the topology, because obviously "mean crease" doesn't work, as well as making vertex group of the vertices on this edge and using it with the "Bevel" modifier.

Blend-file: https://yadi.sk/d/AtQSze6ogdbd4
Actually this is not a bug, this is how it works. Creasing just "pulls" edges on subdivided surfaces towards it's original location (without subsurf) so it's natural.

Please watch this video about 3 different methods regarding the subject:

Tips for Creating Sharp Edges While Modeling

Edit: I may have not been clear enough why that artifact occurs. It's because you're not creasing the edge NEAR the creased one (in the middle which you want to be rounded) and so there is a "jump" between a 100% creased edge and a non-creased edge.