"It is OK to Cry" is a silent book that immerses readers in a world overflowing with tears. The story is set in a family where the parents hope the little girl can stop crying. Unexpectedly, it seems that the world itself is shedding tears alongside her, forming a river of sadness. However, this river becomes the starting point of their extraordinary journey, where every drop of tears carries boundless emotions and strength.and face the past.