Who can help untie the visa? Pang Juan cut Sun Bin's foot.

This sign involves an allusion: Pang Juan and Sun Bin are both descendants of Ghost Valley. Pang Juan was jealous that his brother Sun Bin was older than him, so he framed him and gouged out Sun Bin's kneecap. Later, Sun Bin fled to the State of Qi and sent troops to besiege Wei and save Zhao. After the Battle of Guiling and the Battle of Maling, Pang Juan was forced to commit suicide on Maling Road.

The sign means that although you will experience great suffering, you will have the last laugh.