Only From February 23 onwards.

Note :- Information/source taken from Naver Cafe blogs, Twitter.

FEB 23 - filming in Paju Forest of Wisdom Library which is famous for being one of the most beautiful libraries in Korea

Feb 26 -

Actor Ahn Bo Hyun sent support truck to big boss Song Joong Ki and director lee sang yeop.

Today is the last day of filming. Song Joong-ki x Chun Woo-hee 'My Youth', filming ends today (3rd)⋯JTBC's anticipated melodrama

According to Joy News 24's coverage on the 3rd, the new JTBC drama 'My Youth' (directed by Lee Sang-yeop and Ko Hye-jin, written by Park Si-hyeon) will wrap up all filming on this day.

( https://m.joynews24.com/v/1819259?s=09 ) 

Thank you every cast & crew members.