Jaj - Adrian 1st Show - 180819 - Ptct -

This suggests the first public performance or debut appearance of a member named Adrian .

A common file tag in K-pop "fancam" or photo archives, standing for "Point Center" or "Pic-to-Content," often used by fan sites to indicate high-quality focused media of a specific member. Summary of Likely Content JAJ - Adrian 1st show - 180819 - ptct

Likely an abbreviation for a specific artist or a sub-unit. In some contexts, it can refer to Jacob Akinyemi-Johnson (JAJ) , a prominent media figure and DJ, though in a "show" context with a date like this, it often refers to a performer's initials or a specific stage name. This suggests the first public performance or debut