Complex sentence: On March 29th, 2006, Yanagi graduated from the role of Echizen after the last performance in "Dream Live 3rd"; since his graduation, the role of Echizen has been played by Dori Sakurada and currently by Shougo Sakamoto.
Split into simpler sentences: On March 29th, 2006, Yanagi graduated from the role after his performance in "Dream Live 3rd". Since his graduation, the role of Echizen has been played by Dori Sakurada and currently by Shougo Sakamoto.