The reason why the child actor from ENA's hit drama series 'Extraordinary Attorney Woo' didn't smile on the last day of filming the series gained attention online. 

On July 15th, one of the most popular dramas in Korea this year finished filming its last episode. The cast and staff gathered at a restaurant to celebrate and naturally, many reporters were present at the scene taking pictures. 

Child actor Oh Ji Yul who played Woo Young Woo as a child caught attention as she was seen keeping a straight face despite reporters requesting her to smile for a picture. Turns out she didn't smile because she was conscious after recently losing her baby teeth. 

Netizens said they couldn't hold their smile after learning this adorable reason.

Meanwhile, the 7th episode of 'Extraordinary Attorney Woo' will be airing on July 20th. Its final episode is scheduled to be broadcast on August 18th.