Initial configuration for the model adapted from Pariat et al. (2009) from a slanted view point (panel a) and a view point that is similar to the observations (panels b and c). The yellow lines graze the separatrices, and the boundary of the white circle in panels b and c acts as the PIL. Shearing magnetic field lines in the beginning phase (panel b) evolve as an asymmetric anemone shape around the PIL (panel c). The different sets of field lines are explained in Sect. 3.1.