Young-Ja's pattern cards push each bullet which is in a space with an arrow one space in the direction of that arrow. If these bullet tokens collide with others then those Bullets are pushed one space as well, and so on. Any Bullets which would move beyond the edge the board due to these pushes are considered cleared.
Young-Ja's pattern cards have few requirements, and can thus be used more easily than other heroines.
Her 2AP pushing action works much like these patterns, but pushes only a single bullet token (and any that it collides with).